Genelec SE User Manual

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SE™ Small Environment System Operating Manual

AutoCa

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GENELEC SE™ SMALL ENVIRONMENT DSP SYSTEM

OPERATING MANUAL

Do not attempt to operate the system without ﬁrst becoming acquainted with this manual.

Genelec Document D0082R001. Copyright Genelec Oy 9.2007. All data subject to change.

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Contents

INTRODUCTION .................................................................................................................. 8

GLOSSARY.......................................................................................................................... 9

SYSTEM PARTS

8130A Loudspeaker Delivery Content 13 SE7261A Subwoofer Delivery Content 13 GLM.SE™ DSP Loudspeaker Manager Package Delivery Content 13 GLM.SE™ DSP Multiroom Expansion Package Delivery Content 14

LOUDSPEAKERS ................................................................................................................ 15

Two-way Loudspeakers (8130A) 15 Subwoofer (SE7261A) 16

PLACING LOUDSPEAKERS IN THE MONITORING ROOM

Full-Bandwidth Loudspeaker Placement 18 Subwoofer Placement 19 Multi-Channel System Layout 20

GETTING STARTED

Quick Course to System Basics 23 Step-By-Step System Setup for GLM.SE™ Control Network Use 25 Step-By-Step System Setup for Stand-Alone Use 25

GENELEC LOUDSPEAKER MANAGER GLM.SE™

Overview 26 GLM.SE™ Control Network 27 Installing the GLM.SE™ Software 29 Running the System Setup Wizard 29

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AUDIO CABLING

GLM.SE™ Rapid Cabling Presets 33

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SYSTEM SETUP WIZARD ................................................................................................... 40

Wizard Introduction 40 Rapid Cabling Wizard 41 Manual Cabling Wizard 44 Saving the Setup 50

ACOUSTICAL SETUP WIZARD

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AutoCal™ - Theory of Operation 52 Setting up for AutoCal™ 52 Running AutoCal™ 56 Symmetrical Placement EQ™ 58 Subwoofer Phase Alignment Using the AutoPhase 60 Editing AutoCal™ Settings Manually 61 Storing Settings Permanently Into the SE7261A 62

BASIC USE OF THE GLM.SE™

.......................................................................................... 63

GLM.SE™ Main Page 63 Mute All and Bypass BM 64 Volume Control 64 Level Presets 66 Access to the GLM.SE™ System Setup Editors 66 Information Data Banner 67 Audio Channel Group Functions 67 Menu Items 68 Saving and Recalling Setups 70 Editing Audio Cabling Deﬁnitions 71 Editing Group Deﬁnitions 72 Replacing and Removing Loudspeakers in a System Setup File 74

EDITING ACOUSTIC CALIBRATIONS

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Opening the Acoustical Settings Editor 76 8130A Loudspeakers 77 Interactive Response Editor 79 SE7261A Subwoofer 82 Using the Interactive Response Editor 89

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STAND-ALONE OPERATION .............................................................................................. 90

8130A Connectors and Controls 90 SE7261A Connectors and Controls 92 Stand Alone Controls (Manual) 93

FUNCTION REFERENCE

.................................................................................................... 98

Genelec AutoCal™ 98 SE7261A Online 98 Load Setup 99 Wizard Introduction 100 Rapid Cabling Preset Selection 101 Loudspeaker Marking 102 Storing the Acoustic Settings in GLM.SE™ 103 Recalling the Acoustic Settings in GLM.SE™ 104 System Audio Connections 105 Manual Cabling 105 Rapid Cabling 106 Signal Format 107 Audio Cable Deﬁnition 107 Audio Cabling Summary 109 Loudspeaker Connection 110 Floating Level Fader 112 Reference Level Calibration 113 Shortcut Keys in the GLM.SE™ Software 115

FREQUENTLY ASKED QUESTIONS

.................................................................................. 116

Product 116 Connectivity 117 Software 119 Problems and Support 120

Index .................................................................................................................................... 122

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INTRODUCTION

Congratulations and thank-you for the purchase of this Genelec SE™ DSP Loudspeaker System. This system is designed to integrate easily into the digital production environment. There are several ways to conﬁgure and operate the SE™ systems for a wide variety of high quality audio applications.

This manual addresses the Genelec Loudspeaker Manager GLM.SE™ and the proprietary Genelec loudspeaker control network, guiding step-by-step through the setup process. The SE7261A subwoofer can also be used in stand-alone mode just like any other subwoofer, but without enjoying the beneﬁts of additional ﬂexibility and versatility of the GLM.SE™.

Genelec Loudspeaker Manager Small Environment (GLM.SE™), Genelec AutoCal™, AccuSmooth, SinglePoint, Symmetrical Placement EQ, AutoPhase and MultiPoint are trademarks of Genelec Oy.

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GLOSSARY

.gse ﬁle

.gtd ﬁle

3.5 mm Measurement Signal Cable

AccuSmooth

Acoustical Settings Editor

Acoustical Setup Wizard

Audio channel

Bass Management

Digital Signal Cable

Digital Thru

GLM.SE™ System Setup File

Genelec Time Data ﬁle containing the computed impulse responses of a loudspeaker or subwoofer.

A 3.5 mm stereo jack-to-jack interconnection cable used to connect the MIC OUT socket on the Network Interface to a computer’s soundcard input.

A proprietary smoothing algorithm that has a higher resolution (narrower smoothing bandwidth) at low frequencies than a standard 1/3 octave smoothing, and a similar resolution at high frequencies. This is used by AutoCal™ to ensure accurate placement of notch ﬁlters at critical bass frequencies.

A page in the GLM.SE™ that provides access to the Acoustical Settings in the loudspeaker or subwoofer. The Interactive Response Editor can also be accessed here.

A self-guided Wizard that allows for manual or automated (AutoCal™) calibration of the Loudspeaker Acoustic parameters.

Although the deﬁnition of an audio channel is rather straightforward and clear, it should not be confused with loudspeakers or audio cables in the loudspeaker system. The AES/EBU digital audio cables may carry one or two audio channels. There may be one or more loudspeakers reproducing one audio channel.

Bass Management is used to reproduce the low frequency content of audio channels over one or more subwoofers instead of loudspeakers. This can be the low frequency content from the full-bandwidth audio channels. Parts or the entire LFE audio channel can also be bass managed.

The digital signal cable carries an AES/EBU audio signal. The GLM.SE™ supports AES/EBU digital audio cables typically carrying two channels of audio.

The connector on the back of a loudspeaker used to pass the AES/EBU digital audio signal presented to the digital input connector onto another loudspeaker.

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Genelec 8200A Calibration Microphone

Genelec AutoCal™

Genelec AutoPhase

Genelec Sound Card

GLM.SE™ Control Network

GLM.SE™ DSP Loudspeaker Manager Package

GLM.SE™ DSP Multiroom Expansion Package

GLM.SE™ Main Page

Network Interface / Sound card

GLM.SE™ System Setup Editor

A factory calibrated acoustic measurement microphone used for AutoCal™ system alignment.

Genelec AutoCal™ is a property of the GLM.SE™ software that utilizes built-in test signal generators inside the Genelec SE7261A Subwoofer to acoustically measure and align the loudspeaker system.

Genelec AutoPhase is a part of Genelec AutoCal™. It aligns the phase of the subwoofer in the system to the designated loudspeaker(s).

Genelec Sound Card is a high quality sound card integrated in the Network Interface device. It provides a precise frequency response measurement with Genelec 8200A Calibration Microphone and Genelec AutoCal™ function. The Sound Card is only active when AutoCal™ function is used.

The GLM.SE™ loudspeaker control network is a proprietary network allowing the setting, reading and monitoring of loudspeakers and subwoofers on the GLM.SE™ network. System setup can be achieved very rapidly by simply opening a System Setup ﬁle, which causes all system and loudspeaker settings to be automatically communicated to all loudspeakers.

The GLM.SE™ control network delivery package containing all hardware and software to build a GLM.SE™ Loudspeaker Manager environment. 8130As and SE7261As are purchased separately.

An expansion package providing a license and hardware to install the GLM.SE™ in multiple rooms within a single facility.

The face of the GLM.SE™. This page is used to access all other functions of Loudspeaker Manager.

The Network Interface is a USB device that connects the computer to the GLM.SE™ loudspeaker control network. The Genelec Sound Card is integrated in the Network Interface. The Network Interface translates communication between the computer and the control network, enabling a very large and physically long control network with multiple loudspeakers. The Network Interface isolates the private and conﬁdential messaging with loudspeakers from any public data networks and from the functioning of the computer running the GLM.SE™ software.

This page is used to access more detailed sections of the GLM.SE™ including the Acoustical Settings Editor.

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GLM.SE™ Software

Group

ID Tone

IEC Mains Cable

Interactive Response Editor

Loudspeaker

Manual Cabling Wizard

Manual Controls

Microphone Holder

MultiPoint

Network Cable

Network Control Mode

Rapid Cabling Wizard

Room Response Controls

GLM.SE™ is an abbreviation for the Genelec Loudspeaker Manager. This software enables setup and control of loudspeakers on the GLM. SE™ control network through the use of system setup ﬁles, and supports fully automated loudspeaker system setup.

Loudspeakers or audio channels designated to play simultaneously.

A built-in tone in the SE7261A used to identify which loudspeaker is being communicated to.

A standard detachable mains cable used to apply mains electrical power to the loudspeaker or subwoofer.

Located in the Acoustical Settings Editor, this Editor allows for the interactive adjustment of a measured response using the Room Response Controls.

This term is used for loudspeakers that are not subwoofers. An 8130A Digital Input loudspeaker.

A self-guided Wizard that allows for more complicated and versatile System Setups not found in the Rapid Cabling Wizard.

The user interface settings on a loudspeaker or subwoofer used when in stand-alone mode.

The rubber mounting hardware to attach the Genelec 8200A Calibration Microphone to a standard microphone stand.

A method of spatial averaging used in AutoCal™ measurements, used when optimizing the Acoustical Settings.

A CAT5 cable with RJ45 connectors (type PC-to-HUB, straight not crossed wiring). This cable is also used as an Ethernet network cable. Network cables connects the Network Interface to the SE7261A subwoofer to form a network of devices that may be controlled using the GLM.SE™ software

The use of Genelec DSP loudspeakers with the GLM.SE™ software and the control network.

The GLM.SE™ contains pre-made system setups of the most typical loudspeaker arrangements. Rapid Cabling makes system setup simple and fast by allows the selection of one of these presets.

A collection of controls used to modify the loudspeaker or subwoofer response in order to improve the in-room sound quality at the listening position.

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SinglePoint

Software CD

Stand-Alone Mode

Stored Settings

Subwoofer

System Setup File (.gse)

System Setup Wizard

Third-party Volume Controller

USB Cable

A measurement taken in the main monitoring position used by AutoCal™ when optimizing the Acoustical Settings.

The CD-ROM containing the install ﬁles for Genelec Loudspeaker Manager and AutoCal™.

The use of Genelec SE7261A subwoofer as an individual subwoofer, without the GLM.SE™ software and the control network.

The settings stored inside a SE7261A subwoofer. These settings are used when the loudspeaker is operated in the stand alone mode

An SE7261A subwoofer with 8 channel bass management.

Files stored on the hard drive of a computer running the GLM.SE™. Loading a System Setup File in GLM.SE™ automatically sets up all loudspeakers in the system with stored monitoring Group deﬁnitions, audio cable deﬁnitions, defaults for monitoring levels and all acoustical alignment settings.

System Setup Wizard guides the user through the process of setting up the GLM.SE™.

A peripheral device (e.g. Grifﬁn PowerMate) used to control the system volume.

A type A-B USB cable used to connect the Network Interface to a computer.

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SYSTEM PARTS

The Genelec SE7261A/8130A loudspeaker system consists of

• Two-way 8130A Digital Input loudspeakers

• SE7261A Subwoofer

• GLM.SE™ DSP Loudspeaker Manager Package containing the user interface software with the Control Network Interface including the Genelec Sound Card and a factory calibrated acoustic measurement microphone for controlling the SE7261A subwoofer.

• GLM.SE™ DSP Multiroom Expansion Package

A basic working system requires only loudspeaker(s). See Getting Started.

8130A Loudspeaker Delivery Content

Contents of the Delivery Box

• Loudspeaker

• IEC Mains Cable

• 8130A Loudspeaker Operating Manual

SE7261A Subwoofer Delivery Content

Contents of the Delivery Box

• Subwoofer Loudspeaker

• IEC Mains Cable

• Network Cable

• SE7261A Subwoofer Operating Manual

GLM.SE™ DSP Loudspeaker Manager Package Delivery Content

The GLM.SE™ Genelec Loudspeaker Manager is a loudspeaker control networking system that offers capability to control all system parameters as well as the possibility for detailed acoustical alignment of every loudspeaker in the system. The use of the GLM.SE™ is warmly recommended. Genelec AutoCal™ provides the GLM.SE™ with a fully automated multi-loudspeaker system acoustical calibration capability and comes with a factory-calibrated measurement grade microphone, microphone ampliﬁer and microphone holder.

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Contents of the GLM.SE™ delivery box

• Software CD

• Genelec GLM.SE™ System Operating Manual

• Quick Connection Guide

• Network Interface with a built-in calibration microphone ampliﬁer and Genelec Sound Card

• USB Cable

• Genelec 8200A Measurement Microphone

• Microphone Holder

• Measurement Signal Cable with 3.5 mm stereo plugs

GLM.SE™ DSP Multiroom Expansion Package Delivery Content

The GLM.SE™ software is sold with a site-license permitting installation into multiple rooms. The GLM. SE™ DSP Multiroom Expansion Package delivers a Network Interface and cables for installation into one additional room. Each additional room needs a multiroom expansion pack.

• Network Interface

• USB Cable

• Network Cable

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LOUDSPEAKERS

This section provides a rapid overview of Genelec GLM.SE™ loudspeakers. In-depth information about the loudspeakers is available at www.genelec.com and in the Operating Manuals supplied with the loudspeakers.

Two-way Loudspeakers (8130A)

The two-way 8130A loudspeakers accept both AES/EBU digital audio and analog audio through the same connector, however in this system only a digital signal is passed from the SE7261A.

Digital Audio Input

The digital input has a ﬁxed sensitivity. Digital signals are represented relative to their maximum value, or Full Scale (FS) value. For example, -10 dBFS means that the digital audio signal level is 10 dB below the full scale or the maximum representable digital signal.

In the SE7261A/8130A signal translates to 115 dB SPL at 1 m sound pressure level. For example, a signal having -36 dBFS level produces a sound level of 79 dB SPL at 1 m. This is a technical speciﬁcation of the loudspeaker, and the Genelec Loudspeaker Manager GLM.SE™ can adjust the monitoring volume down from this level.

Digital audio sample rate can vary from 32 kHz to 192 kHz and word length from 16 to 24 bits. Only single wire-dual channel is supported.

System, the maximum theoretical audio level for a 0 dBFS digital audio input

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Two-Way Loudspeaker Functional Blocks

All audio enters audio input stage where all crossover and ﬁltering takes place. The audio outputs go via digital-to-analog conversion to built-in power ampliﬁers and on to the tweeter and woofer drivers. The loudspeakers have built-in user interfaces with switches and a rotary level control on the front of the loudspeaker.

Subwoofer (SE7261A)

Digital Audio Input

The digital input has a ﬁxed sensitivity. Digital signals are represented relative to their maximum or Full Scale value. For example, -10 dBFS means that the signal level is 10 dB below the full scale or the maximum representable digital signal.

In Genelec SE7261A subwoofers, the maximum audio level of 0 dBFS translates to the theoretical 115 dB SPL at 1 m sound pressure level. For example, a -36 dBFS signal produces a sound level of 79 dB SPL at 1 m. Genelec Loudspeaker Manager GLM.SE™ adjusts the monitoring volume down from this level.

Digital audio sample rates can vary from 32 kHz to 192 kHz and word length from 16 to 24 bits. SingleWire formats are only supported. Note that there may be a valid AES/EBU signal although the signal is silent.

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Subwoofer Functional Blocks

The subwoofers have AES/EBU digital audio inputs only. There are no analog audio inputs. All audio enters the DSP processor, where all signal processing takes place. The output goes via digital-to-analog conversion to the built-in power ampliﬁer and driver. High pass outputs are delivered via AES audio to the 8130As. The subwoofer has a built-in user interface with switches and rotary controls and a connection to the Genelec Loudspeaker Manager network enabling centralized management of up to 8 loudspeakers and 1 subwoofer in one installation.

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PLACING LOUDSPEAKERS IN THE MONITORING ROOM

Here is a quick introduction to monitoring loudspeaker placement.

• Place the loudspeakers in their expected positions before cabling anything.

• For most applications, the two-way 8130A loudspeakers should be located within 1.7-2.5 meters (5-8 ft.) of the primary listening position.

• Attempt to place all loudspeakers at ear height for the person in the primary listening position. If a loudspeaker is higher than ear height, tilt and turn the loudspeaker toward the listening position. Genelec two-way loudspeakers feature a vibration-isolating monitor stand, the IsoPod™, which enables the positioning of the loudspeaker towards to the primary listening position.

• Aim the acoustic axis of all (turn towards the listening position) and vertically (tilt towards the listening position).

• Position subwoofer close to the wall(s).

• Remember that all audio cables must go to the subwoofer ﬁrst and then to the loudspeakers. Make sure that enough cable length is available to move the subwoofer around the room to ﬁnd a location of optimal performance.

The following sections provide more detailed information about placing loudspeakers in a monitoring environment.

Full-Bandwidth Loudspeaker Placement

Minimum Distance From a Wall Behind a Loudspeaker

Genelec two-way 8130A loudspeakers should be placed so that a minimum distance of 5 cm (2”) is left behind the loudspeaker for ampliﬁer cooling and rear opening reﬂex port sound radiation.

loudspeakers towards the main listening position both horizontally

Low Frequency Cancellations

In general, when a loudspeaker’s front bafﬂe is more than 0,3 meters (1 foot) away from the wall behind the loudspeaker, a reﬂection from this wall can cause a cancellation of low frequencies and hence reduction of bass output. For two-way loudspeakers, low frequency cancellations in the 40 – 80 Hz frequency range should be avoided. Cancellations in the 80 - 200 Hz range should also be avoided if possible.

Recommended Distances

Translating this into distance recommendations shows that loudspeakers can be placed close to a wall at a distance less than 1 meter (3 ft.). Distances between 1 and 2.2 meters (3-7 ft.) should be avoided.

Loudspeakers placed more than 2.2 meters (7 ft.) away from walls may suffer from cancellations around the low frequency cut-off of the loudspeaker limiting low frequency bandwidth. As a rule of thumb, the

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Recommended distances from a single wall to the front bafﬂe of free-standing loudspeakers. Correct (green), acceptable (orange) and not recommended (red).

lower the low frequency cut-off the further away the loudspeaker must be placed from the wall in order to avoid this phenomenon.

Distances to the ceiling and other walls may be shorter than the distance to the wall behind a loudspeaker. Reﬂections from these surfaces may be important and should also be considered.

Subwoofer Placement

Subwoofers can make life much easier in producing high quality low frequency energy. When a subwoofer is used, the loudspeakers can be placed more freely, thereby allowing more ﬂexibility in ﬁnding a good location in the room for the reproduction of low frequencies.

A subwoofer should be placed close to a wall, preferably closer than 0.6 meters (2 ft.) from a wall. This placement eliminates most possible cancellation sources and the subwoofer response remains ﬂat and well loaded.

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Recommended distances from a single wall to the front bafﬂe of loudspeakers combined with subwoofer(s). Correct (green), acceptable (orange) and not recommended (red).

Using a subwoofer provides an additional crossover frequency (typically at 85 Hz). This makes placing loudspeakers much easier. Acceptable distances extend to 1.1 m because of the low frequency cut-off of loudspeakers. Loudspeakers may be placed between 1.1…2 m without serious compromises due to the wall behind the loudspeaker causing serious cancellation effects.

Although Genelec subwoofers provide accurate phase control at the crossover point, loudspeakers should not be placed further than 2 m (7 ft.) from a supporting subwoofer. Larger distance differences may cause tonal balance differences around the crossover frequencies due to loudspeakers and subwoofer(s) exciting different room modes.

Multi-Channel System Layout

The positioning of tables, screens, racks, etc, is critical in order to maintain accurate imaging. Early reﬂections can smear the sound image and compromise localization. To avoid this, reﬂecting surfaces between loudspeakers and the listening position should be minimized. Symmetrical positioning of equipment is essential. Even with symmetry, reﬂecting surfaces should be removed from the vicinity of acoustic paths.

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Front Loudspeaker, Multi-Channel Layout

For multi-channel audio the Left and Right loudspeakers should be placed 60 degrees apart, with the Center loudspeaker in the middle. All loudspeakers should be of the same type so there are no coloration changes when panning sounds across the front stage.

Left ﬁgure: Example of non-symmetrical layout producing reﬂections from computer screens and table surface totally different for different loudspeakers. This situation creates front-back and left-right localisation smearing. Right ﬁgure: Symmetrical layout minimizes reﬂection surfaces and maintains accurate localisation because reﬂections are similar due to symmetry.

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Recommended loudspeaker positioning for 5.1 multi-channel audio reproduction.

Surround Loudspeakers

Surround loudspeakers should be placed in a positional window between ±100 to ±120 degrees from the centerline. If more than two loudspeakers are used an equal number of loudspeakers should be placed symmetrically on both sides of the center line, on a circle between ±60 to ±150 degrees. Most recording engineers choose ±110…130-degree position for a surround stereo pair.

System Location In the Room

It is important that the multi-channel installation is symmetrically located in the room. Reﬂections created by boundaries should be identical from left to right so that spatial information and panning of sources remains stable. It is also recommended that the listening position be located in the front half of the room so that the direct sound level is maximized relative to the reverberant energy in the room.

Aiming of Acoustical Axis

All loudspeakers should be aimed towards the engineer’s listening position.

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GETTING STARTED

Quick Course to System Basics

Control network and audio cabling are separate. The ﬁrst observation to be made is that audio signals and control information travel along different cables. This has the inherent advantage of allowing one to operate the system with the control network (known as the network control mode) or without the control network if so desired (known as the stand-alone mode).

When using the Genelec loudspeaker control network, full control to all features in a loudspeaker become available. Attaching the control network automatically puts the system in the network-controlled mode.

Digital Audio

8130A active loudspeakers and SE7261A subwoofers have AES/EBU digital audio inputs. Run the AES/ EBU audio cable(s) to the subwoofer ﬁrst, then onto the main loudspeakers. The AES/EBU cable carries two digital audio channels, run another cable from the “Thru” output of the loudspeaker to the input of the next loudspeaker.

If the audio source has a volume control for the AES/EBU digital audio, it can be used to control the monitoring level.

If the AES/EBU outputs are ﬁxed level line-outs, various volume controls options are available in the GLM. SE™ loudspeaker control software.

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The GLM.SE™ software provides several volume control faders on the computer display. These volume controls can be used in the same computer running audio processing or recording software.

Third-party volume control knobs (for example Grifﬁn PowerMate) that attach to a USB interface can also be used to control the monitoring level through the GLM.SE™ software and the Genelec loudspeaker control network.

Stand-alone mode refers to using the SE7261A subwoofer without the GLM.SE™ Control Network.

When calibrating the DSP two-way loudspeakers one can select to use the same switch-based acoustic alignments that can be found on the analog loudspeakers, or to use a much more versatile set of room response controls available through the GLM.SE™ loudspeaker control software.

The GLM.SE™ software runs on any Windows XP computer. The Network Interface connects the computer to the SE7261A. Using the GLM.SE™ software provides full access to all room response controls. After aligning the system acoustically, it is possible to store these settings in the GLM.SE™ software Setup File or inside the SE7261A memory.

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Step-By-Step System Setup for GLM.SE™ Control Network Use

The Genelec GLM.SE™ DSP System uses a networking concept for controlling a multi-channel system. A control network cable is provided with all Genelec GLM.SE™ systems.

To setup quickly, follow the steps detailed below. For further information consult the sections of this manual mentioned in each step.

• Unpack and position the loudspeakers. See the “Loudspeaker Placement” section for details.

• Find the Genelec Control Network cables in the SE7261A delivery box. Connect the control network. See the “Genelec control network cabling” section for details.

• Find the Network Interface and follow cabling instructions. See the “GLM.SE™ Network Interface Device” section for details.

• Label and connect

• Launch GLM.SE™, then follow the on-screen instructions to complete a System Setup. Select either Rapid Cabling Mode or Manual Cabling Mode and follow the instructions.

• Select the appropriate Rapid Cabling preset in the GLM.SE™ and launch the Rapid Cabling Wizard. See the “Rapid Audio Cabling” section for details.

• To acoustically align the system, run the Acoustic Setup Wizard in the GLM.SE™. See the “Acoustic Setup Wizard” section for details.

• Congratulations! Setup is now complete!

A more detailed system setup procedure can be found in the section describing the System Setup Wizard.

the audio cables. See the “Audio Cabling” section for details.

Step-By-Step System Setup for Stand-Alone Use

Stand-Alone Use

Genelec DSP loudspeakers can be used like any other loudspeaker system, without the GLM.SE™ control network. This is known as stand-alone use.

• Note that when a 8130A loudspeaker detects a valid AES/EBU word clock, the system will sync and run in the digital input mode.

• DSP subwoofers only have digital audio inputs and can be used in stand-alone mode running AES/EBU-digital audio.

• For more information on setting up and using loudspeakers in stand-alone mode, see the section on stand-alone operation.

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GENELEC LOUDSPEAKER MANAGER GLM.SE™

Overview

The Genelec Loudspeaker Manager GLM.SE™ is the control software for Genelec DSP loudspeaker systems. The GLM.SE™ runs on a personal computer.

The GLM.SE™ knows when an SE7261A subwoofer is present on the control network and provides access to all settings and system level controls.

The GLM.SE™ connects solely to a single SE7261A and offers control of everything within the subwoofer’s DSP. This includes controls built into the high and low pass outputs as well as full system controls including monitoring volume, mute/solo for audio channels, audio channel Group selection and more.

All settings can be collectively stored into the computer as a System Setup File. Loading a System Setup File recalls all system level settings and sets all settings for all loudspeakers, including acoustic calibration.

Using the GLM.SE™, all acoustic settings can also be stored into the SE7261A for stand-alone use.

The basic structure of a GLM.SE™ Control Network has the following components

• Computer running the GLM.SE™ software.

• One USB port of the computer connected to the Network Interface.

• The Network Interface.

• Network cable connected to the SE7261A subwoofer.

GLM.SE™ software communicates only with the SE7261A subwoofer. All digital signal processing controlled by GLM.SE™ software is contained in the SE7261A.

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GLM.SE™ Control Network

Network Interface

The Network Interface serves as the communicator between the SE7261A on the control network and the computer. Attach the Network Interface to a USB port. The device driver is installed automatically.

The USB cable runs from the computer to the Network Interface. Once the Network Interface is connected to the computer ﬂashing lights on the interface indicate that the network is active. If no communication lights are ﬂashing, check that the control network cable and the USB cable are securely attached and the GLM.SE™ software is running.

The GLM.SE™ network runs on CAT5 cables. These are the same cables that are used for Ethernet. Instead of using Ethernet for communication with the SE7261A, Genelec uses a proprietary protocol deﬁning the method of communication between the SE7261A and the Network Interface that connects to the USB port on the computer.

There are several important reasons why a USB interface is used instead of, for example, the Ethernet. This keeps the network running at all times, even if the computer crashes. The Network Interface acts as the master controller on the network, and communicates to all aspects of the SE7261A, even if the computer is rebooting.

The Genelec network uses a proprietary communication protocol to ensure integrity of communication to and from the SE7261A. The Network Interface is used as a translator between the Genelec control network and any computer hardware using it. This ensures that loudspeaker control trafﬁc remains insulated and secured from any public networks. This is necessary because of the possibility of congestion on public networks (loudspeaker control messages do not get through), and in order to limit the range of access (outsiders on a public network could possibly control the loudspeakers).

The USB interface is ubiquitous in the computer world. A USB cable run is normally limited to 5 m (15 ft.), but this is not a problem. The computer network cable from the Network Interface can extend to any practical distance needed. If the Network Interface cannot be placed close the computer the USB cable can be extended with actively buffered cables up to 25 meters (75 ft.) in length.

Note

If the Network Interface is disconnected or the computer is powered down, the GLM.SE™ software will no longer control the SE7261A. In that event, the system maintains its current settings until the subwoofer is powered down or the “STORED” dip switch on the SE7261A is moved.

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When the loudspeakers are re-powered and the GLM.SE™ software is not controlling the network, the SE7261A subwoofer obtains acoustic settings based either on the user interface controls on the subwoofer (manual controls) or from its internal memory (stored settings). This choice is determined by the position of the switch marked “STORED/MANUAL CTRL” on the SE7261A connector panel.

GLM.SE™ Control Network Cabling

Control comes from the computer running the GLM.SE™ software. The computer connects to the Network Interface via the USB port (a 1.5-meter USB cable is provided). The Network Interface connects onwards to the SE7261A using the provided network cable. No other network connections are needed since the SE7261A does all the DSP processing.

Consider an example with ﬁve 8130A loudspeakers and one SE7261A subwoofer. The digital audio uses AES/EBU cabling where each physical audio cable carries two channels of digital audio. All audio cables run to the subwoofer ﬁrst and then to the 8130A loudspeakers. The GLM.SE™ Control Network starts from the USB port of the system-controlling computer, runs through the Network Interface and onwards to the SE7261A.

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Installing the GLM.SE™ Software

Put the software CD in the CD-ROM drive of the computer. The installation will start automatically. Follow the on-screen instructions.

Running the System Setup Wizard

The System Setup Wizard is a self-guiding program designed to make the installation process easy and complete.

The basic ﬂow of setting up the system is detailed below. Consult the sections of this manual mentioned in each step for further details. Before running the System Setup Wizard, make sure that all audio source equipment output levels are turned down.

• Unpack and position the 8130A loudspeakers. See the “Loudspeaker Placement” section for details.

• Find the Genelec Control Network cable in the SE7261A delivery box. Connect the control network. See the “Genelec control network cabling” section for details.

• Find the Network Interface Device and follow cabling instructions. See the “Network Interface Device” section for details.

• Find the software CD in the Genelec Loudspeaker Manager package, insert it in computer and follow on-screen instructions to install Genelec Loudspeaker Manager GLM.SE™ on the computer. See the “GLM.SE™ Genelec Loudspeaker Manager” section for details.

• Label and connect the audio cables. See the “Audio Cabling” section for details.

• Launch the GLM.SE™, then follow the on-screen instructions to complete a System Setup. Select either Rapid Cabling Mode or Manual Cabling Mode and follow the instructions.

• If there is no applicable Rapid Cabling Preset, select the Manual Cabling Wizard. See the “Manual Audio Cabling” section for details. Plan all cabling according to the guidelines provided in this section. Plan channel labeling and loudspeaker labeling and launch the Manual Cabling Wizard.

• To acoustically align the system, run the Acoustic Setup Wizard in the GLM.SE™. See the “Acoustic Setup Wizard” section for details.

• Use the fully automated alignment system AutoCal™ built into the Acoustic Setup Wizard.

• Finally Save the System Setup and study the basic use of the GLM.SE™.

Once the network cabling is complete, turn on all the loudspeakers. From the computer, launch the Genelec Loudspeaker Manager by clicking on the Genelec Loudspeaker Manager icon.

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AUDIO CABLING

Always plan your audio cabling and label the cables before connecting them and running the System Setup Wizard. It is suggested that the digital audio cables are labeled using the following convention: “AES/EBU Channel number and Sub-frame – Loudspeaker location.” For example: “AES/EBU 1A – Front Left”

XLR Connector Pin Assignments for AES/EBU Signals

For digital applications cables speciﬁcally designed to carry high-speed digital audio should be used. This cable should have 110-ohm characteristic impedance. Do not use standard microphone cable intended for analog signals, as it does not have good performance for digital audio applications and may result in poor digital audio performance, especially for longer cable runs.

The inputs will sync for sample rates from 32 kHz to 192 kHz Single-Wire signals. Since AES/EBU audio is typically transmitted in audio channel pairs (Channel A and B), connections will have to be made from one loudspeaker to another. This is accomplished via the output connectors in the SE7261A subwoofer and by daisy-chaining the 8130As using the THRU connector on the back of the loudspeakers. Typical pairing in a two-channel stereo AES/EBU bit-stream has the Left audio channel carried in the AES/EBU sub-frame A and Right audio channel carried in the AES/EBU sub-frame B. The digital audio cable can go to either loudspeaker ﬁrst. Select which sub-frame to reproduce by manually selecting Channel A or B on the back of the 8130A loudspeaker.

MAKE SURE ALL AUDIO CABLES ARE LABELED BEFORE STARTING THE CABLING PROCEDURE!

Stereo Setups

Digital audio cabling MUST go from source to the SE7261A subwoofer ﬁrst, then to the 8130As, to either loudspeaker ﬁrst, then on to the next using the THRU connector. Freely connect to either loudspeaker ﬁrst.

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5.1 Multi-Channel Setup

A 5.1 multi-channel setup carries six channels of audio. They are the Left Front, Right Front, Center Front, Left Rear, Right Rear, and LFE channels. The LFE channel is a bandwidth-limited low frequency effects channel. To reproduce such a 5.1 setup, one subwoofer and ﬁve loudspeakers are normally used. All digital audio cables must run to the subwoofer ﬁrst. The SE7261A DSP subwoofer uses AES/EBU input number 4 as the LFE

input.

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Duplicating Loudspeakers

It is also possible to daisy-chain digital audio signals to additional loudspeakers. One such application might be a movie mixing room where multiple loudspeakers must reproduce the rear and side channel signals.

In the example below the Left Rear and Right Rear loudspeakers have been duplicated. The system is built simply by daisy-chaining the AES/EBU cable out from one loudspeaker to the next unit until all loudspeakers have been connected. Be sure that the proper DIP Switch for channel reproduction is ON for each of the 8130As.

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GLM.SE™ Rapid Cabling Presets

The Rapid Cabling Presets help speed up the System Setup by quick identiﬁcation of the speakers and reduced text entries. The most common loudspeaker setups seen in listening rooms have been included with the Rapid Cabling Presets.

Table of Rapid Cabling Presets

Type of signal Audio channel

layout

AES/EBU single-wire 2.0 Stereo Pair with Subwoofer No

AES/EBU single-wire 5.1 5.1 Surround System with

AES/EBU single-wire 6.1 6.1 Surround System with

AES/EBU single-wire 7.1 7.1 Surround System with

Here is a brief list of instructions on how to complete the Rapid Cabling Wizard.

Rapid cabling option Support for LFE channel

Yes

Subwoofer

Yes

Subwoofer

Yes

Subwoofer

• Before starting the GLM.SE™, identify in the Rapid Cabling Preset Table shown above, the description that matches the desired loudspeaker setup. Then, ﬁnd the corresponding section below and study the cabling layout description and the AES sub-frame assignment table.

• At the sound source (mixing console, audio workstation, etc.) assign audio signals to the AES/EBU outputs according to the table provided in each Rapid Cabling System Description.

• Connect audio cables according to the description and the cable wiring diagram in the Rapid Cabling System Description. BE SURE TO MANUALLY SWITCH EITHER CHANNEL A OR B ON THE BACK OF EACH 8130A ACCORDING TO WHATEVER SUB-FRAME OF AES AUDIO YOU WISH THAT SPEAKER TO REPRODUCE.

• Connect the GLM.SE™ Control Network cabling.

• Start the GLM.SE™ and proceed to the System Setup Wizard. Select the Rapid Cabling Wizard. Then select the Rapid Cabling System Preset in the drop-down box.

• If the system is properly connected and loudspeakers turned on, an ID Tone is brieﬂy turned on from output 1A. In all cases of rapid cabling, this should be the Left 8130A. Once the match is conﬁrmed press “Next”. Repeat the procedure until all the 8130As have been identiﬁed.

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• Press “Next”. The System Audio Connections page is shown. This provides a list of audio channels and the loudspeakers that are connected to those channels. Press “Finish” if all entries match.

• Use “File | Save As…” to name the System Setup that has just been created. Press “File | Save” to save with the current name.

It is strongly suggested that the Acoustical Setup Wizard is now used to acoustically align the loudspeaker system. On the following pages each of the Rapid Cabling Presets are presented in more detail along with an easy-to-follow graphic.

Stereo Pair with Subwoofer (AES/EBU Single-Wire)

Description. This Rapid Cabling Preset has one AES/EBU cable that carries both the Left and Right

audio channels.

AES/EBU Sub-Frame Assignments.

the Right audio channel. Be sure the proper DIP switch is turned ON for each 8130A.

Cabling.

having the same number as the input to the digital audio inputs of the Left and Right loudspeakers (the order of cabling the loudspeakers is irrelevant).

Groups.

Run one AES/EBU cable from the source to the subwoofer, then from the output of the subwoofer

The pre-assigned Groups are Stereo, Left, and Right.

Sub-frame A carries the Left audio channel. Sub-frame B carries

Cable number Sub-frame DIP Switch ON Audio channel Subwoofer Input

Connector

1 A Left AES/EBU input 1 Digital in

1 B Right AES/EBU input 1 Digital in

8130A Input Connector

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5.1 Surround System with Subwoofer (AES/EBU Single-Wire)

Description. This Rapid Cabling Preset utilizes three AES/EBU cables to carry 5.1-audio. “5.1” refers to

having ﬁve full-bandwidth audio channels and an LFE channel. All three cables run to the subwoofer ﬁrst, then from the subwoofer to the ﬁve loudspeakers.

AES/EBU Sub-Frame Assignments.

AES/EBU sub-frame assignments and connectors to be used with the subwoofer and loudspeakers are provided in the table below. Cabling. Run three AES/EBU cables from the source to the subwoofer AES/EBU inputs 1, 2 and 4. Subwoofer input number 3 is not used. Run the cables from the subwoofer AES/EBU outputs 1, 2 and 4 to the digital audio inputs of the loudspeakers. The cable that carries the LFE channel must be connected to the subwoofer input number 4.

Groups.

The pre-assigned Groups are Surround, Stereo, and Rears.

The AES/EBU digital audio cables are numbered one to three. The

Cable number Sub-frame DIP

Switch ON

1 A Left Front AES/EBU Input 1 Digital in

1 B Right Front AES/EBU Input 1 Digital in

2 A Left Rear AES/EBU Input 2 Digital in

2 B Right Rear AES/EBU Input 2 Digital in

3 A Center Front AES/EBU Input 4 Digital in

3 B LFE AES/EBU Input 4 --

Audio channel Subwoofer Input

Connector

8130A Input Connector

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6.1 Surround System with Subwoofer (AES/EBU Single-Wire)

Description. This Rapid Cabling Preset utilizes four AES/EBU cables to carry “6.1-audio”. “6.1” refers to

having six full-bandwidth audio channels and an LFE channel. All cables run to the subwoofer ﬁrst, then from the subwoofer to the six loudspeakers.

AES/EBU sub-frame assignments.

The AES/EBU sub-frame assignments and connectors to be used with the subwoofer and two-way loudspeakers are provided in the table below. Cabling. the cables from the subwoofer AES/EBU outputs 1, 2, 3 and 4 to the digital audio inputs of the loudspeakers. The cable that carries the LFE channel must be connected to the subwoofer input number 4. Groups. The pre-assigned loudspeaker Groups are Surround, Stereo, and Rears.

Run four AES/EBU cables from the source to the subwoofer AES/EBU inputs 1, 2, 3 and 4. Run

The AES/EBU digital audio cables are numbered one to four.

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Cable number Sub-frame DIP

Switch ON

1 A Left Front AES/EBU Input 1 Digital in

1 B Right Front AES/EBU Input 1 Digital in

2 A Left Rear AES/EBU Input 2 Digital in

2 B Right Rear AES/EBU Input 2 Digital in

3 A Center Rear AES/EBU Input 3 Digital in

3 B Not used Not used --

4 A Center Front AES/EBU Input 4 Digital in

4 B LFE AES/EBU Input 4 --

Audio channel Subwoofer Input

Connector

8130A Input Connector

7.1 Surround System with Subwoofer (AES/EBU Single-Wire)

Description. This Rapid Cabling Preset uses four AES/EBU cables to carry 7.1 audio. 7.1 refers to seven

full-bandwidth audio channels and an LFE channel. All cables run to the subwoofer ﬁrst, then from the subwoofer to the seven loudspeakers.

In this system there are either:

• SDDS System: ﬁve loudspeakers in the front (L, C, R, L Extra, R Extra), two loudspeakers in the rear (L rear, R rear) and the LFE Low Frequency Effects channel reproduced by the subwoofer

• HD Systems: three loudspeakers in the front (L,C,R), two loudspeakers in the side (L Extra, R Extra), two loudspeakers in the rear (L rear, R rear) and the LFE Low Frequency Effects channel reproduced by the subwoofer

AES/EBU sub-frame assignments.

The AES/EBU sub-frame assignments and connectors to be used with the subwoofer and two-way loudspeakers are provided in the table below.

Groups. The pre-assigned loudspeaker Groups are Surround, Stereo, and Rears.

The AES/EBU digital audio cables are numbered one to four.

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Cabling in a 7.1 SDDS system

Cabling in a 7.1 HD system

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Cable number Sub-frame DIP

Switch ON

1 A Left Front AES/EBU Input 1 Digital in

1 B Right Front AES/EBU Input 1 Digital in

2 A Left Rear AES/EBU Input 2 Digital in

2 B Right Rear AES/EBU Input 2 Digital in

3 A Left Extra AES/EBU Input 3 Digital in

3 B Right Extra AES/EBU Input 3 Digital in

4 A Center Front AES/EBU Input 4 Digital in

4 B LFE AES/EBU Input 4 --

Audio channel Subwoofer Input

Connector

8130A Input Connector

Custom Audio Cabling

If the chosen loudspeaker arrangement or audio channel cabling does not conform to the existing Rapid Cabling schemes, the Manual Cabling Wizard should be used for setting up. Manual Wizard allows a great deal of ﬂexibility and freedom, but takes a bit more time to complete. See the Manual Cabling Wizard chapter for details.

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SYSTEM SETUP WIZARD

Wizard Introduction

There are several Wizards to help with loudspeaker system setup and acoustical alignment. The Setup Wizard allows selection between Rapid Cabling Wizard and Manual Cabling Wizard.

The Rapid Cabling Wizard is fast and effortless, and supports the most typical loudspeaker arrangements. Most System Setup tasks will be completed automatically. See the Rapid Cabling Wizard chapter for details.

The Manual Cabling Wizard should be used if the loudspeaker arrangement or the audio channel cabling does not conform to the existing Rapid Cabling schemes. Manual Wizard allows a great deal of ﬂexibility and freedom, but takes a bit more time to complete. See the Manual Cabling Wizard chapter for details.

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Rapid Cabling Wizard

Rapid Cabling Preset Selection

This window appears when launching the Rapid Wizard.

Rapid Wizard makes cabling up the loudspeaker system very fast and effortless by allowing one of the ready-made audio cabling schemes to be selected. Once a scheme has been selected, the Rapid Wizard will make most system deﬁnitions automatically.

The Rapid Cabling Presets available are:

• Stereo pair with subwoofer

• 5.1 system (ﬁve full-bandwidth audio channels and one LFE audio channel, reproduced by ﬁve loudspeakers and a subwoofer)

• 6.1 system (six full-bandwidth audio channels and one LFE audio channel, reproduced by six loudspeakers and a subwoofer)

• 7.1 system (seven full-bandwidth audio channels and one LFE audio channel, reproduced by seven loudspeakers and a subwoofer)

These Rapid Cabling Presets are available for Digital single-wire signal type. Select the appropriate scheme in the Rapid Cabling Preset window and click “Next”. This starts Rapid Wizard setup process.

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Loudspeaker Marking

This window is used with the Rapid Cabling Wizard.

Rapid Cabling allows selection of one of the ready-made digital audio cabling schemes. After having selected a scheme and cabled up, Loudspeaker Marking window allows the GLM.SE™ to assign each loudspeaker to an audio channel name available in the Rapid Cabling scheme.

While displaying this window, one loudspeaker at a time will produce an audible identiﬁcation tone from the loudspeaker to help locate it. The identiﬁcation tone can be repeated by clicking the small loudspeaker icon. When using Rapid Cabling Presets, all identiﬁcation tones start from output 1A (Left Channel, output 1). When using Manual Cabling Setups the ﬁrst identiﬁcation tone will come from the “A” side of the ﬁrst connector that is identiﬁed and used on the SE7261A. Then click the “Next” button. After this another loudspeaker will be selected by the GLM.SE™. Again, match and afﬁrm the described loudspeaker matches its actual position and click “Next”. This process will continue until all the loudspeakers have been identiﬁed. The GLM.SE™ selects the loudspeakers in the order in which they are wired to the subwoofer – starting with Channel (sub-frame) A, then B (if it is used).

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System Audio Connections

The System Audio Connections window presents a summary of the audio channel deﬁnitions created and loudspeakers associated with each audio channel.

Verify that the information is correct. Use the Back button to reverse through the Cabling Wizard to a point where necessary corrections are required. When the information is correct, click “Next” to accept the System Audio Connections. This completes the System Setup process so the settings should be saved in a System Setup ﬁle. After this, proceed to run the Acoustical Setup Wizard.

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Manual Cabling Wizard

The Manual Cabling Wizard can also be used to create a new setup. This happens automatically or by selecting the menu item “File | New” and then selecting in the appearing window the Manual Cabling Wizard.

The next screen to appear is the Audio Cable Deﬁnition page.

This screen displays the channels being carried on the two AES/EBU audio sub-frames. These are marked as Channel 1A and Channel 1B.

The example below shows the Left and Right channels being assigned to 1A and 1B respectively. Enter the channel names into each text box and select the proper channel type. If the system has more than two channels click “Create New Cable” until all the channels have been accounted for.

Click “Next>” to continue to the System Cable Summary.

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Next is a summary of the loudspeaker system cable and audio channel deﬁnitions. Click the “<Back” button to move backwards to make changes or correct mistakes.

Click “Next>” to continue

Now the audio cable deﬁnitions are complete. Move on to describe connections in each loudspeaker.

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Subwoofer Connection

Assign AES/EBU cables to appropriate inputs on the subwoofer. Use the pull-down menus under the area labeled “Connected Cables” to match the cables to the appropriate inputs. You can give a name to the subwoofer in “Loudspeaker Info” box.

Under the area labeled “Channel Selections”, note that the channels are automatically selected to be bass managed (BM). These channels will now be marked with “BM” in the “Connected Cables” area. If you do not want to have a channel bass managed, deselect the box adjacent to the channel label. Note that the LFE channel can only be connected to subwoofer AES/EBU input number 4.

Click “Next>” to continue

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Loudspeaker Connection

Now conﬁrm the AES/EBU cables and the channel to be reproduced by the 8130A loudspeaker. To conﬁrm that the settings of the correct loudspeaker are being edited, click the loudspeaker icon and an ID tone will be heard.

You may also name the 8130A loudspeaker in the “Loudspeaker Info” line.

Click “Next>” to continue to System Audio Connections

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The System Audio Connections page displays channel labeling, cable connections, and all reproduced audio channels. In case changes need to be made, click the “Back” button to return to the earlier windows.

Click “Next>” to continue.

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Creating Groups

A Group enables rapid selection of a set of audio channels/loudspeakers.

To create a Group, type in a name in the text box and select/deselect the desired loudspeakers for the Group by clicking on the loudspeaker icons.

Click “Add New Group” to create another Group. Up to 32 Groups can be created. Click “Finish” to Save and complete the Manual Cabling Wizard.

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Saving the Setup

Automated Saving

While running the GLM.SE™ Wizards, a question may appear asking the user to save the changes done up to that point. This allows for convenient and timely saving while running the Wizard.

At this point the user is asked to save the settings made so far into a System Setup ﬁle. To save the setup, type in a name and click “Save”. Once the setup has been saved there is a choice to run the Acoustical Setup Wizard or to proceed directly to the GLM.SE™ Main Page.

The setup can also be saved manually at any time after a Wizard has been completed. To save into the current setup, select the menu item “File | Save”.

To save a setup under a new name, select the menu item “File | Save As…”.

Note that Setup ﬁles should ONLY be stored in the default folder as speciﬁed by GLM.SE™.

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ACOUSTICAL SETUP WIZARD

After the System Setup Wizard has been completed, there is an option to run the Acoustical Setup Wizard. The Acoustical Setup Wizard may also be accessed at any time from the Setup menu on the main page.

AutoCal™. AutoCal™ is an automatic calibration system that uses a calibrated precision measurement microphone, and is able to fully calibrate a multiple loudspeaker system. It is possible to manually edit the acoustic settings after running AutoCal™ using the Interactive Response Editor, which may be found in the Acoustical Settings Editor. To run AutoCal™, select one of the sound card options (Genelec sound card is recommended) and click “Yes”.

Study the section Placing Loudspeakers in the Monitoring Room to understand the most important acoustical principles of placing loudspeakers into a monitoring space and the best ways to optimize sound quality. It is important to note that electronic alignment should not be used to ﬁx problems due to inappropriate loudspeaker positioning in the room or incorrect angling of cabinets. It is important to place and aim the loudspeakers correctly BEFORE equalizing. In addition, it is generally better to solve acoustical problems in the room using acoustical solutions rather than relying on electronic equalization.

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AutoCal™ - Theory of Operation

AutoCal™ uses sequenced test signals and a high quality calibration microphone to ﬁnd the correct acoustical alignments for the 8130A loudspeakers and SE7261A subwoofer on the GLM.SE™ Control Network. A high quality Genelec Sound Card is also integrated in the Network Interface to provide precise measurement signal handling. We recommend that you use the Genelec Sound Card when running AutoCal™. The procedure is described below.

AutoCal™ uses sine tone sweeps generated by the SE7261A subwoofer. These sweeps are recorded using a calibrated Genelec 8200A Calibration Microphone, over one or more positions, and the impulse responses calculated. AutoCal™ then determines the correct acoustical settings for each high pass output as well as the SE7261A to obtain:

• Flat frequency response at the listening position, or over an area.

• Equal delay from all loudspeakers to the primary listening position.

• Proper alignment of the subwoofer(s) in terms of output level and crossover phase (referenced to a selected loudspeaker).

When AutoCal™ has optimized the Room Response Control settings the results can be saved into the System Setup ﬁle. Further adjustment is then possible using the Acoustical Settings Editor.

AutoCal™ is an acoustical measurement system, so do not move around, talk or stand close to the microphone when the measurements are being performed. A ﬁve second delay countdown starts from the moment the “P” button is pressed until the ﬁrst sweep tone is emitted. AutoCal™ is not designed to compensate for poor room acoustics and/or poor loudspeaker positioning. These issues should be addressed before using electronic equalization.

Setting up for AutoCal™

To Set up for AutoCal™ with Genelec Network Interface / Sound Card

This option is STRONGLY recommended.

The Network Interface incorporates a high quality Genelec USB Sound Card and is only active when the AutoCal process is running. The Genelec Sound Card ﬁrst initializes as a USB Audio CODEC when the AutoCal window is opened. In or to ensure AutoCal can initialize the Genelec Soundcard (USB Audio CODEC) double-check that Windows is allowed to use something other than just the default Audio devices (“ Use only default devises” is not selected”). Once the AutoCal is completed, GLM.SE automatically shuts down Genelec Sound Card and USB Audio CODEC disappears.

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• Place the Genelec 8200A Calibration Microphone on a microphone stand using the microphone holder supplied in the GLM.SE™ DSP Loudspeaker Manager Package. This holder positions the microphone at the correct angle and mechanically decouples the microphone from the stand.

• Connect the microphone’s cable to the “AutoCal™ Microphone” socket of the Network Interface.

• The output of the microphone preamp is carried via the USB port connection, not the “Mic Preamp out” jack.

• Conﬁrm that the network connection properly exists between the computer and SE7261A via the Control Network / Sound Card Interface.

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Optional Set up for AutoCal™ with Host Computer’s Internal Default Sound Card

This option is only recommended if problems are encountered during Genelec Sound Card Installation.

• Connect the microphone’s cable to the “AutoCal Microphone” socket of the Network Interface.

• Connect one end of the 3.5 mm Measurement Signal Cable to the “Mic Preamp out” socket of the Network Interface and the other end to the microphone input of the computer’s sound card.

• Conﬁrm that the network connection properly exists between the computer and SE7261A via the Control Network / Sound Card Interface.

The AutoCal™ uses the default sound card in the GLM.SE™ computer and the line input or microphone input that has been deﬁned in the Windows Control Panel settings. Ensure that the input where the measurement microphone signal has been connected is selected as the input in the Windows Control Panel.

This can be found in the Control Panel, Sound and Audio Devices, select ”Audio” tab, in the Sound Recording frame, click on the ”Volume...” button. This opens the ”Recording Control” window. Ensure that the correct input has been selected. The use of a line input is recommended. However, all computers do not have a line input even if a line input is shown in the Recording Controls window. In that case you must use the microphone input, and select the microphone input in the Recording Controls window. AutoCal™ will automatically set the correct Volume setting for this input.

Make sure additional signal processing for automatic level control, microphone boost or telephone bandwidth ﬁltering has been disabled in the computer control panel. Sometimes these settings will be found under the Advanced Settings button.

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Running AutoCal™

AutoCal™ can be run at the end of either Cabling Wizards or from the GLM.SE™ Main Page menu “Setup | GLM.SE™ Acoustic Wizard”.

When the Sound Card Option window appears, select “AutoCal™ with Genelec sound card” and press “Yes”.

The AutoCal™ process consists of two main stages; ﬁrstly the acoustic responses of the SE7261A and 8130As are measured, secondly they are then aligned for ﬂat response, equal delay and level. Below is a more detailed description of what happens and needs to be done by the user:

• Connect all the cables as described above.

• Type and enter the serial number printed on the side of the Genelec 8200A Calibration Microphone into the “Microphone Serial Number” box. This retrieves the calibration ﬁle for that microphone. The calibration ﬁle corrects for small frequency response and sensitivity differences between microphones.

• Before starting the measurements, decide whether only the primary listening position is to be measured (SinglePoint measurement) or whether additional measurement positions (MultiPoint measurement) will be used.

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Note: Spatial averages generally show less variation than a single point measurement, therefore less equalization will be applied. This is useful if there is a listening area rather a single well-deﬁned listening point. The primary listening position measurement constitutes 50% of the MultiPoint response and the sum of the other measurements makes up the remainder. This biases the results towards the center of the listening area.

• Position the microphone at the primary listening position (normally the center of the mixing console) and press the button labeled “P” (brown color).

• Before the loudspeaker measurements begin, AutoCal™ automatically compensates for the response of the input stage of the soundcard. This is done to ensure that the frequency response of the microphone input does not affect the acoustic measurement results. It only needs to be done once, when AutoCal™ is ﬁrst run.

• Next, all the subwoofers and loudspeakers will be measured one at a time.

• If this is a MultiPoint measurement, move the microphone to a new position, press one of the numbered buttons and another set of measurements will be taken. Up to 3 optional

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positions can be measured in this way. The additional points may be measured in any order. Any number of additional points up to three may be measured.

• Once the measurements have been completed, press the “Calculate” button to optimize the Room Response Controls in each subwoofer and loudspeaker. The measurement taken at the primary listening position constitutes 50% of the frequency response to be optimized. The remaining 50% is the sum of the MultiPoint measurements. Delays and levels are based on the primary measurement.

• After optimization, the result for each loudspeaker and subwoofer can be reviewed. The response of each loudspeaker may be viewed by clicking on the loudspeaker name in the Loudspeaker List.

• Finally press the “Finish” button and decide whether to save the results to the setup ﬁle, press the “Yes” button, or discard them, press the “No” button. New acoustical settings will be immediately set in all loudspeakers and subwoofers.

Symmetrical Placement EQ™

To maintain a very accurate stereo image AutoCal™ can be forced to design one ﬁlter used for both loudspeakers forming a stereo pair, for example the Left and Right Front loudspeakers. The intent of this feature is that it be used only in environments that are symmetrical and where the loudspeakers are placed symmetrically in that space. To do this, the “Calculate Symmetrical Placement Eq’s” checkbox need to be activated and the “Calculate” button needs to be engaged (The Loudspeaker Pair Deﬁnition window will be opened before the optimization starts.)

In the Loudspeaker Pair Deﬁnition window, select loudspeakers 1 and 2 in the drop-down lists, then click the “Add Pair to List” button and continue doing so until all stereo pairs in the system have been deﬁned in the Stereo Pair List. Click “Ok” to ﬁnish and start the equalizer design.

A loudspeaker pair can be deleted from the Loudspeaker Pair List by selecting the pair from the list and pressing “Remove Pair from List” button. If the Symmetrical Placement is not desired then the “Cancel” button can be pressed (the equalizer design will not start before “Calculate Symmetrical Placement Eq’s” checkbox is deactivated and the “Calculate” button is engaged).

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Subwoofer Phase Alignment Using the AutoPhase

The AutoPhase automatic subwoofer phase calibration process can individually select the optimal phase alignment setting for the subwoofer in the loudspeaker system for a speciﬁed crossover frequency and reference loudspeaker. The optimal phase alignment results in the best ﬂatness of the acoustic response within the subwoofer-to-loudspeaker crossover region.

For optimal performance, the AutoPhase process should be rerun every time the crossover frequencies for the subwoofers are changed. Also, if you change the subwoofer Distance value in the Acoustical Settings Editor for Subwoofer, the AutoPhase process must be rerun for best performance.

Please note that when you run AutoCal™ for the entire loudspeaker system, the option to run AutoPhase is also available.

In order to run the subwoofer phase calibration process, the measurement microphone must be connected to the computer using the Network Interface, and the microphone must be placed at the primary listening position.

To access the automatic subwoofer phase alignment or AutoPhase, enter the Acoustic Wizard, select the AutoCal™, and click ”Yes”. This opens the AutoCal™ window presenting a ﬁve-point process of automatic calibration. To directly access the AutoPhase, ﬁnd step number ﬁve, ”Run AutoPhase”, and click the ”AutoPhase” button.

This opens the AutoPhase window, presenting the SE7261A on the control network. For this subwoofer, select in the drop down boxes the Crossover, Channel, and Loudspeaker.

The Crossover deﬁnes the crossover frequency for the subwoofer.

The Channel is the audio output channel for the test tone in the subwoofer. The loudspeaker must be connected to reproduce this audio channel, and the audio cable must be connected from the subwoofer to the 8130A. The Loudspeaker is the reference loudspeaker for subwoofer phase alignment. One of the loudspeakers connected to the subwoofer is selected as the reference loudspeaker.

After crossover frequencies and reference loudspeakers have been deﬁned for the SE7261A subwoofer, click the ”Calibrate” button to start the AutoPhase process.

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When the calibration process is running, a test tone is switched on by the GLM.SE™, and the microphone signal is recorded and analyzed. All noise or other audio signals should be avoided during the calibration process, while the test tone is playing.

Editing AutoCal™ Settings Manually

Once AutoCal™ measurements have been taken, they become available in the GLM.SE™ Acoustic Editor. A new button will appear under the graphic presentation of the equalizer response.

Clicking the “Interactive Response Editor” button opens a new window, the Interactive Response Editor.

This window now shows the response measured by AutoCal™, the correction and the corrected acoustic response. This view is interactive and will immediately respond to changes in the controls on the Acoustical Settings Editor page. Manually editing the numbers in the Room Response Controls section on this page will change the correction in the loudspeaker. The same can be affected by pulling any controls on the

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interactive ﬁlter response display. Also, any changes in ﬁltering are immediately audible in the loudspeaker. This way it is possible to manually edit the equalization created by AutoCal™.

Click “Ok” in the Acoustical Settings Editor to save the edited settings in the System Setup File.

Storing Settings Permanently Into the SE7261A

The Acoustical Settings determined by AutoCal™ are not automatically uploaded to the memory inside the SE7261A. They are saved in the currently open System Setup ﬁle in the computer.

If the GLM.SE™ software is always used to control the system, it is not necessary to store the Acoustical Settings determined by AutoCal™ into the SE7261A subwoofer. Opening any System Setup ﬁle fully restores all Acoustical Settings in a system attached to that Setup.

If the GLM.SE™ is not used to control the system, the system will be working in the stand-alone mode. For stand-alone use, the Acoustical Settings determined by AutoCal™ should be written into the SE7261A subwoofer. This is achieved by selecting the Main Page menu item “Setup | Store Acoustic Settings to SE Subwoofer (With Full Master Level)” or “Setup | Store Acoustic Settings to SE Subwoofer (With Current Master Level)” depending on the master level you prefer to use.

Storing the Acoustical Settings inside the subwoofer’s memory is a very effective way of performing full system calibration for a stand-alone Genelec DSP loudspeaker system. Use AutoCal™ to determine the system calibration, store the settings permanently in the subwoofer and then remove the GLM.SE™ Control Network. One computer running GLM.SE™ can be used to set up any number of systems, for example a multi-room studio or broadcast facility. The settings for each system can be stored in different System Setup ﬁles and so are readily available should the system need to be reinstalled or maintained in some way.

One example of such maintenance is if a subwoofer fails. Simply replace the subwoofer and rewrite the system setup into the SE7261A on the GLM.SE™ Control Network. Another example is where systems may be warehoused and called out for use in one of several rooms. The loudspeakers must be re-assigned for this to succeed, i.e. the correct serial number must be found or serial numbers in the system setup ﬁle must be swapped to the serial number of loudspeakers actually existing on the GLM.SE™ Control Network. This process is explained in the section “Replacing Loudspeakers.”

Please note that the LFE +10 dB data is NOT written to the SE7261As internal memory. This is due to the fact that some multi-channel formats do not support the 10 dB boost. Session-to-session requirements may vary with respect to this. While in the Stored Settings mode of operation, the 10 dB boost switch is available to be changed, either at the connector panel switch or via the optional remote control (Order code 7000-416) connected to the RJ11 connector on the SE7261A connector panel.

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BASIC USE OF THE GLM.SE™

The Genelec Loudspeaker Manager provides a versatile set of tools to operate the loudspeaker system. For more details, study the section on the basic use of the GLM.SE™.

GLM.SE™ Main Page

The Main Page of the GLM.SE™ has the following primary functions:

• Volume functions (volume adjustment, volume presets, DIM, system mute)

• Bass management bypass

• Audio channel Group functions (group activation, solo and mute audio channels)

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Mute All and Bypass BM

In the upper left corner there are two system level controls. When activated, the background color of these buttons will change to red.

The “Mute All” button mutes the entire loudspeaker system. Other functions in the GLM.SE™ may be operated while Mute All is activated. This control has an overriding effect, and any changes made elsewhere will take effect once the “Mute All” button is deactivated.

The “Bypass BM” button offers control of the subwoofer’s bass management system.

• When the “Bypass BM” button is engaged (red background), signals sent to the loudspeakers are not ﬁltered in the subwoofer bass management section and the low frequency content in the signals remains intact.

• When the “Bypass BM” button is disengaged (grey background), audio content below the bass management crossover frequency are fed to the subwoofer and removed from the signals sent to the loudspeakers.

Note that this is not a “subwoofer mute” command. If there is an LFE channel (low frequency effects), the subwoofer will reproduce the LFE channel even while the “Bypass BM” is active.

Volume Control

The “Page Up” and “Page Down” keyboard keys and the “Up” and “Down” arrow keys can be used to increment the volume up or down in 0.5 dB steps. The mouse can also be used to increment the volume up and down in 10 dB steps by clicking on the volume fader.

A third-party USB physical volume controller knob (e.g. Grifﬁn PowerMate) can be used to adjust control the volume, bass management bypass and mute functions. If the computer is located away from the listening position, the USB knob can be placed up to 25 meters (75 ft.) away from the computer using active buffered USB extension cables, or up to 5 meters (15 ft.) with passive USB extension cables.

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To the left of the volume fader there are three level preset icons. There are two ways to select a level preset.

• Click the left mouse button on one of the green level preset icons placed on the left of the system volume fader.

• Click the left mouse button on the level preset buttons in the “Preset Levels” frame.

The DIM button reduces the system volume by -20 dB. When activated, the button color changes to red. System volume and select volume presets are adjustable while the system DIM is active, but the actual volume remains -20 dB below the value shown in the main window.

If the system has been calibrated for a Reference Level (Menu … Setup | Calibrate Reference Level), a dB value will be displayed below the “DIM -20 dB” button.

The Reference Level

normally mixed at a reference level of 85 dB. Domestic broadcast and DVD releases are normally mixed at a reference level of 79 dB. Music is mixed at whatever level the engineer prefers. The true or total sound level depends of the actual number of loudspeakers playing and the program material fed into them.

is deﬁned at the Primary Listening Position. Commercially released movies are

Level in dB relative to

digital full scale

System level fader

Level preset icons

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Clicking the “Show Fader Only” button selects between the full view of the main window and a small window showing only the level fader with the level preset icons.

Level Presets

The level preset section of the main window allows quick access to three preset sound levels.

The are two-ways to set Level Presets.

• Enter a value into the “Preset Levels” value box.

• Hold down the SHIFT key, locate the mouse pointer on one of the green level preset markers to the left of the level fader and press down the left mouse button. Drag the icon to the required level and release the mouse button.

Select button to activate a level preset

Level preset value

Access to the GLM.SE™ System Setup Editors

The “GLM.SE™ System Setup” button activates the System Setup Editor. This allows for changes to cabling, groups and acoustical settings of the loudspeakers in the system. For further details about editing system settings consult the System Setup Editor and Acoustic Setup Editor sections on this manual.

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Information Data Banner

An Information Data Banner is located at the bottom of the screen and displays some useful data about the current System Setup.

• Network status. The alternatives shown are “OK” meaning that the control network is running normally; “Check IF” when the GLM.SE™ is searching to ﬁnd a network interface in one of the USB ports on the computer; and “DEMO” when GLM.SE™ is run without the GLM.SE™ Network Interface connected.

• Type of audio cabling.

• This ﬁeld can be used to verify what number of loudspeakers are currently being used in the Setup.

• Amount of Video Delay Compensation.

Audio Channel Group Functions

The right side of the Main GLM.SE™ page provides some Group functions. The audio channels in the loudspeaker system can be arranged into Groups, and clicking on the Group name activates a Group. When a Group is activated, it opens and shows the audio channels belonging to this Group. Only the channels belonging to the Group will play.

To the right of the audio channel names are the “Solo” and “Mute” buttons. By clicking on these buttons it is possible to solo and mute one or more audio channels. The “Play All” button resets any mute and solo selections. Note that clicking “Play All” does not turn the audio on if the “Mute All” button is active.

Click on group

name to activate

the group

Turn all channels on

Mute this audio channel

Solo this audio channel

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Menu Items

The “File” menu allows access to System Setup ﬁles.

• “File | New” Starts the System Setup Wizard and is used to make a new setup from the beginning.

• “File | Open” Loading a System Setup File in the GLM.SE™ automatically sets up all loudspeakers in the system with monitoring group deﬁnitions, audio cable deﬁnitions, defaults for monitoring levels and all acoustical alignment settings from a previously saved System Setup File.

• “File | Save” stores all settings into the currently open

• “File | Save As…” is used to save modiﬁcations in the current setup under a new System Setup ﬁle name.

• Up to ﬁve recently used System Setup ﬁles are listed below “Save As”.

• “File | Exit” closes the GLM.SE™.

System Setup ﬁle.

• “Setup | Set GLM.SE™ Startup Level” reads and stores the current setting of the volume fader and uses this volume setting when starting the GLM.SE™.

• “Setup | Calibrate Reference Level” opens the Reference Level Calibration page.

• “Setup | Change Channel Order” allows for changes to be made to the order in which audio channels are listed in the Groups.

• “Setup | Password Protection” allows for password protection of System Setup ﬁles. After setting a password, a System Setup ﬁle can be opened but not saved without knowing the password. This way, System Setups can be protected from unwanted tampering or alteration.

• “Setup | Acoustical Setup Wizard” runs the Acoustical Setup Wizard for with the currently open System Setup ﬁle. To create a new setup from scratch, select “File | New” and then run the Rapid or Manual Cabling Wizard and Acoustical Setup Wizard.

• “Setup | GLM.SE™ System Setup Editor” open the System Setup Page.

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• “Setup | Store Acoustic Settings to SE Subwoofer (With Full Master Level)” permanently stores all Acoustical Settings into the subwoofer. Note that the Acoustical Settings deﬁned in the currently open System Setup ﬁle are used for all loudspeakers, but whenever a new System Setup ﬁle is opened, all acoustic settings for all loudspeakers will be written according to this new System Setup ﬁle. Any Stored Settings will be available in Stand-Alone mode if the switch on the subwoofer connector panel is set to the position “STORED CTRLS” and the GLM.SE™ Control Network is detached from the subwoofer.

• “Setup | Store Acoustic Settings to SE Subwoofer (With Current Master Level)” saves the acoustic settings with attenuation corresponding to the master level fader setting on the GLM. SE™ window.

• “Setup | Recall Acoustic Settings from SE Subwoofer” – this pulls all Stored Settings from the subwoofer’s memory and loads the values into the currently running Setup. NOTE: Settings will be read over the loaded setup ﬁle and original settings will be overwritten when save. Use “Save As” to keep the original setup ﬁle.

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MANAGING SYSTEM SETUPS

A system setup contains information about

• The loudspeakers in the system setup

• How the audio channels have been assigned in the cables

• The input and output conﬁgurations of each loudspeaker

• The acoustic settings for each loudspeaker

The System Setup is saved as a .gse ﬁle extension and by default is saved into the location C:/Program Files/Genelec/GLM SE/Setup Files A System Setup ﬁle is created as a result of running the System Setup Wizard. Acoustic settings can be added in the System Setup ﬁle by running the Acoustic Wizard. It is possible also to manually edit the settings by using the System Editor tools.

To access System Setup Editor, click “SE System Setup” button.

Saving and Recalling Setups

The basic way to save system setups is to use the GLM.SE™ main window “File | Save” or “File | Save As…” commands.

The basic way to recall system setups is the “File | Open” command.

Additionally, the GLM.SE™ asks the user to save the settings into a System Setup ﬁle after changes have been made in the system’s settings by using the System Setup Editor. A dialog for saving changes will appear when this happens.

To create a System Setup ﬁle with a new name, use the “Save As…” menu item to save the setup. After that, make the desired changes in this new System Setup ﬁle.

The System Setup Editor is divided into three main areas to:

• Edit the properties of audio cable deﬁnitions

• Create, remove and edit Group deﬁnitions

• Edit acoustical and input settings for loudspeakers or subwoofers

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Editing Audio Cabling Deﬁnitions

Audio cables can be edited for purposes of re-labeling the cable or identifying its function.

The “Edit Cable” button opens the cable deﬁnition editor page to edit the selected cable. This would be used for example if you forgot to identify during the Manual Cabling Wizard a cable as carrying an LFE channel.

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Editing Group Deﬁnitions

A Group is a set of audio channels playing simultaneously. Note that one or more loudspeakers may be reproducing one audio channel, and one or more audio channels may be reproduced by one loudspeaker, so it is important to understand that Groups are a collection of audio channels, not just Groups of loudspeakers. Groups can be added, copied, edited or deleted.

The “Add Group” button creates a new Group deﬁnition to the System Setup ﬁle. By default all channels are active in the new Group.

The “Copy Group” button creates a new Group deﬁnition to the System Setup ﬁle with the same content as the currently selected Group deﬁnition.

The “Edit Group” button opens a Group deﬁnition editor for modifying the selected Group.

The “Delete Group” button deletes the selected Group. There must be at least one Group in a System Setup ﬁle.

The Group deﬁnition editor provides step-by-step instructions when creating a new Group deﬁnition. The default setting when creating a new Group is that all audio channels are selected and all loudspeakers are playing.

To modify the Group, click on the audio channel nametags. This excludes (marked by a red “x’) all loudspeakers reproducing this audio channel. It is also possible also click on the individual loudspeakers

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to exclude them from reproducing this audio channel. This allows editing of reproduction Groups on the audio channel or loudspeaker level.

Finally, click “OK” to accept the changes. A question will be presented about saving the modiﬁed Group deﬁnition in the currently active System Setup ﬁle.

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Replacing and Removing Loudspeakers in a System Setup File

GLM.SE™ supports a situation where the SE7261A has changed. When one SE7261A is replaced with a new one, from the GLM.SE™ point of view, the old subwoofer has disappeared and the new subwoofer has appeared, but it still does not belong to the currently deﬁned system.

The SE7261A is identiﬁed with a unique identiﬁer number. This ID number is recorded in the System Setup ﬁle.

When there is a SE7261A deﬁnition in the network, it is moved to the bottom of the list and identiﬁed as an Ofﬂine Loudspeaker along with all the 8130s. When this occurs, the GLM.SE™ activates the “Replace/Remove” button at the bottom of the System Setup Editor page.

When the ID number recorded in the System Setup ﬁle does not match the ID number of the SE7261A on the GLM.SE™ Control Network, the Replace/Remove tool must be used. Replacing a SE7261A with a new one means that the subwoofer’s settings are permitted to be written to the new SE7261A. This process is useful if a subwoofer breaks and is temporarily or permanently replaced with a new unit.

To replace a SE7261A

• Click the SE7261A deﬁnition that no longer is associated with a loudspeaker on the network.

• Click the “Replace/Remove” button. This opens the replace/remove editor.

• In the Replace/Remove editor, displayed at the top, is the loudspeaker to be replaced. At the bottom is a list of the available but unassigned loudspeakers.

• In the Ofﬂine Loudspeakers area, the SE7261A model is shown along with its given name and unique identiﬁer number.

• To replace this subwoofer with another one available on the network, click on the SE7261A listed in the bottom table titled “Loudspeakers (Online)”. The selected subwoofer will ﬂash its front panel light and the ID tone will play.

• Before clicking “OK”, check that the “Remove and Replace with” option has been selected as the “Action”.

• Click “OK” to perform the replacement.

System Setup, but this subwoofer is no longer found on the

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EDITING ACOUSTIC CALIBRATIONS

The GLM.SE™ software contains a versatile set of controls to edit the acoustic setup of a loudspeaker or subwoofer. Changing these acoustical controls is strongly discouraged unless there is access to a properly set up professional acoustic measurement system, for example, MLSSA or WinMLS. Adjusting the acoustic calibration “by ear” will most likely result in a degradation of audio quality.

Opening the Acoustical Settings Editor

The Acoustical Settings Editor can be accessed as follows:

• In the GLM.SE™ main window, click the “GLM.SE™ System Setup” button, or select the menu item “Setup | GLM.SE™ System Setup”.

• Now select a loudspeaker in the “ System Setup window.

• Click the “Edit Acoustic Settings” button or double click on loudspeaker (loudspeaker column) and the “Acoustical Setup” will open for that loudspeaker. Note that the appearance of the Acoustical Setup Editor window depends on the loudspeaker type.

Loudspeakers (Online)” panel seen in the lower half of the

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8130A Loudspeakers

The Acoustical Settings Editor for the 8130A loudspeaker high pass outputs looks like this:

It contains the following functionality:

• Room Response Controls: the 8130s. These are a versatile set of controls especially designed for in-situ loudspeaker equalization.

• Level and Distance Controls: loudspeakers.

• Test Signal Section: measurement purposes.

• Preview Control: Settings Editor (GLM.SE™ Settings) was opened or the settings that have been made since the Acoustical Settings Editor was opened (Modiﬁed Settings).

selects between two control sets – the control set at the time the Acoustical

Provides access to the controls that affect the frequency response of

Allows for alignment of this loudspeaker into a system of

Provides a pink noise signal generated for the loudspeaker for test and

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Room Response Controls

The second-order notch ﬁlters are designed to change the ﬁner detail of a loudspeaker’s response. Each notch ﬁlter has three parameters; center frequency, gain and Q-value. Gain controls the depth of the notch (negative gain only) and Q-value refers to how wide the notch is relative to its center frequency. A narrow notch has a high Q-value, whereas a wide notch has a low Q-value. A ﬁlter can be selected by clicking on the ﬁlter’s button. The button changes to a green color and a cursor is added to the graph to indicate the corresponding ﬁlter icon. Values can be written directly into the parameter boxes. Values outside the permissible range are automatically changed to the maximum or minimum allowed as appropriate. Manually entering many parameter values is tedious, so it is also possible to quickly drag the small triangular icons, and the associated Q-value slider for notches, in the graphical ﬁlter response window.

Note that the original ﬁlter settings are depicted with a blue line and the modiﬁed settings with a green line. These two ﬁlter sets can be compared using the “Preview” function.

For example, to set a notch at 600 Hz with a gain of –10 dB, ﬁrst put the mouse pointer on one of the notch triangle icons, press down the left mouse key, and move the mouse to adjust the notch frequency and gain.

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Then place the mouse cursor on the blue Q-value icon, press down the left mouse button and drag to adjust the Q-value to 5. The Q-value to be adjusted now depends on which notch ﬁlter was selected. To adjust the Q-value of a speciﬁc ﬁlter, click on one of the notch ﬁlter triangle icons or click on the selection button in the parameter table.

Interactive Response Editor

If an AutoCal™ measurement (SinglePoint or MultiPoint) of the loudspeaker has been taken, the “Interactive Response Editor” button is visible. When clicked, the “Interactive Response Editor” window is displayed. It displays the in-room response measured by AutoCal™ and shows how the current Acoustical Settings modify the response.

The Acoustical Settings (Room Response Controls and Level) can be changed interactively in order to see the effect on the measured response. This facility allows for inspection of the effect of the current Acoustical Settings and may be used after running AutoCal™ to make controlled adjustments to the parameters. The 0 dB level in the acoustic response plot is the reference level set by AutoCal™ and is consistent across all loudspeakers and subwoofers in a system. Any changes to the controls mentioned above will change the ﬁltered response curve relative to the 0 dB level.

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Level and Distance

These controls align the loudspeaker into a system of loudspeakers.

Adjusting the loudspeaker output level changes the relative sensitivity of the loudspeaker, thereby permitting the alignment of the loudspeaker to the same level as the other loudspeakers and subwoofers on the GLM.SE™ Control Network.

Enter the physical distance of the loudspeaker from the primary listening location into the “Distance” box. The unit of measurement can be selected as preferred by the user and the applied delay is automatically calculated and displayed. The displayed delay value is the amount time delay required to compensate for the addition distance of this loudspeaker on the GLM.SE™ Control Network relative to the nearest loudspeaker in the system. The delay will be 0 ms if this loudspeaker has the longest entered distance.

Test Signals

Test: This section provides a pink noise signal generated inside the loudspeaker for measurement and testing purposes. Pink noise can be used in level alignment with the aid of a sound level meter, and for example to locate a loudspeaker on the GLM.SE™ Control Network.

Channel Switch/Solo

The “Solo” button mutes all the other loudspeakers being processed by the SE7261A. The solo function is useful for measurement and calibration purposes. The solo state is automatically reset when closing the Acoustical Settings Editor window.

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Preview

This control offers a choice between two control sets – the control set at the time the Acoustical Settings Editor was opened (“GLM.SE™ Settings”) or the settings that have been made since Acoustical Settings Editor was opened (“Modiﬁed Settings”). This can be used to audition existing and new settings that may have been made.

Saving the settings into a System Setup File

When the adjustments have been completed, press “Ok” and the GLM.SE™ asks if the new settings can be saved in the currently open System Setup File. If “Yes” is pressed, the newly edited settings are saved, “No” discards the changes and “Cancel” returns back to the Acoustical Settings Editor so more changes can be made.

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SE7261A Subwoofer

The Acoustical Settings Editor for a SE7261A subwoofer looks like this:

It contains the following functionality:

• Room Response Controls: frequency response. These are a versatile set of controls especially designed for in-situ loudspeaker equalization.

• Level and Distance controls: loudspeakers.

•

• Main Channel Crossover:

• LFE Channel:

• Bass Roll-Off: relative to the pass-band of the subwoofer.

Phase: Adjusts the subwoofer’s phase at the crossover frequency.

Deﬁnes how the LFE channel is handled.

This control reduces the level near the lower cut-off frequency of the subwoofer

Provides access to the controls inside the subwoofer that affect the

Allows for alignment of this subwoofer into a system of

Selects the subwoofer crossover frequency.

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• Test Signal Section: Provides a pink noise or sine wave signal generated inside the subwoofer for test and measurement purposes. Some test signals are intended to be reproduced by the subwoofer(s) and some by the other loudspeakers on the GLM.SE™ Control Network.

• Preview Control: Settings Editor (GLM.SE™ Settings) was opened or the settings that have been made since the Acoustical Settings Editor was opened (Modiﬁed Settings).

selects between two control sets – the control set at the time the Acoustical

Room Response Controls

The Room Response Controls section provides access to the equalizer inside the subwoofer.

There are four second-order notch ﬁlters available and each has three parameters; center frequency, gain and Q-value. Gain controls the depth of the notch (negative gain only) and Q-value refers to how wide the notch is relative to its center frequency. A narrow notch has a high Q-value, whereas a wide notch has a low Q-value. High Q-values are possible for precise modal compensation tasks.

A ﬁlter can be selected by clicking on the ﬁlter’s button. The button changes to a green color and a cursor is added to the graph to indicate the corresponding ﬁlter icon. Values can be written directly into the parameter boxes. Values outside the permissible range are automatically changed to the maximum or minimum allowed as appropriate. Manually entering many parameter values is tedious, so it is also possible to quickly drag the small triangular handles, and the associated Q-value slider for notches, in the graphical ﬁlter response window.

Note that the original ﬁlter settings are depicted with a blue line and the modiﬁed settings with a green line. These two ﬁlter sets can be compared using the “Preview” function.

For example, to set a notch at 40 Hz with gain of –10 dB and a Q-value of 5, ﬁrst put the mouse pointer on one of the notch triangle icons, press down the left mouse key, and move the mouse to adjust the notch frequency and gain. Then place the mouse cursor on the blue Q-value icon, press down the left mouse button and drag to adjust the Q-value to 5. The result of this exercise can be seen in the graph below.

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Interactive Response Editor

If an AutoCal™ measurement (SinglePoint or MultiPoint) of the subwoofer has been taken, the “Interactive Response Editor” button is visible. When clicked, the “Interactive Response Editor” window is displayed. It displays the in-room response measured by AutoCal™ and shows how the current Acoustical Settings modify the response.

The Acoustical Settings (Room Response Controls, Level and Bass Roll-Off) can be changed interactively see the effect on the measured response. This facility allows for inspection of the effect of the current Acoustical Settings and may be used after running AutoCal™ to make controlled adjustments to the parameters. The 0 dB level in the acoustic response plot is the reference level set by AutoCal™ and is consistent across all loudspeakers and subwoofers in a system. Any changes to the controls mentioned above will change the ﬁltered response curve relative to the 0 dB level.

Bass Roll-Off

This control reduces the level near the low corner frequency of the subwoofer relative to the passband of the subwoofer. A Bass Roll-Off attenuation value is selected from a drop-down box. The dB-value shown is the attenuation at the low frequency cut-off of the subwoofer.

The Bass Roll-Off control can be used in combination with the notch ﬁlters and its effect can be seen in the frequency response graph and in the Interactive Response Editor. An example can be seen below, for a Bass Roll-Off setting of –2 dB combined with a single notch ﬁlter set to 60 Hz, -10 dB and Q-value 5.

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Level and Distance

These controls align the subwoofer into a system of loudspeakers. Adjusting the subwoofer output level changes the relative sensitivity of the subwoofer, thereby permitting the alignment of the subwoofer to the same level as the other loudspeakers and subwoofers on the GLM.SE™ Control Network.

Enter the physical distance of the subwoofer from the primary listening location into the “Distance” box. The unit of measurement can be selected as preferred by the user.

Since a subwoofer has mechanical, acoustical and electronic sources of delay, usually a subwoofer has a delay longer than a loudspeaker. The GLM.SE™ does not attempt to compensate the delay in the

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loudspeakers to be equal to the delay of a subwoofer, because doing so would result in excessively long delays for the loudspeakers. Instead, the subwoofer phase at the crossover frequency is aligned with the phase of a reference loudspeaker. The reference loudspeaker is typically the left or right loudspeaker in a

5.1 system or a two-channel stereo system.

Crossover Phase Alignment

This control adjusts the subwoofer’s phase at the Main Channel Crossover frequency and is implemented using a short time delay. The distance and phase information are combined by the GLM.SE™ into a single delay value applied to the subwoofer feed. The phase control can be set automatically using AutoPhase in AutoCal™, or manually as described below.

The “cancellation method” is recommended for manual calibration of the subwoofer phase:

• Turn on the “sine wave” test signal and direct it to the audio channel that will be used as the reference loudspeaker. It is recommended that the left or right loudspeaker is used in a two channel or multichannel system.

• A sinusoidal (i.e. single-frequency) signal should be heard from the selected reference loudspeaker and the subwoofer.

• Adjust the “Phase” slider to ﬁnd the lowest sound level when seated at the primary listening position. This occurs when the sound from both devices is exactly out of phase. This can be measured using a sound level meter set to “C-weighting” and “Slow” or simply by listening.

• Now click the “Invert” button and the sound level will increase. The subwoofer is now in phase with the reference loudspeaker.

Crossover Frequency Selections

This control allows the crossover frequency for the full bandwidth (main) audio channels to be chosen. It is recommended that the crossover frequency is set to 85 Hz (default). The reasons are mainly acoustic and relate to typical listening conditions. This value is a good trade-off between the following factors:

• Loudspeakers are to produce the highest output sound level with low distortion by removing the very low frequencies in their signal feed.

• Loudspeakers couple less to modal resonances in the room thereby improving audio quality.

• Integration of the subwoofer(s) to the rest of the system is better when the subwoofer does not produce high bass frequencies.

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Conversely, there may be good reasons to select a higher or lower crossover frequency, but it is recommended that good quality acoustical measurements are conducted before adjusting this control.

LFE Channel Low Pass Corner Frequency. Low pass corner frequency of 120 Hz is recommended for the LFE channel input as this is a widely accepted industry standard. There may be reason to select another low pass corner frequency for certain applications.

LFE Channel Gain.

audio source outputs the LFE channel at the same level as the main channels. This results in the LFE channel’s audio being boosted by 10 dB in the subwoofer. If the audio source already outputs the LFE audio 10 dB higher than the main channels, select “0 dB”.

LFE Channel Redirect.

handled.

If LFE redirection is not selected, audio content on the LFE channel above the “LFE channel low pass corner frequency” is not reproduced. This is useful for “pre-ﬁltering” the LFE channel. It is recommend that mixes are checked with an 80 Hz low pass ﬁlter on the LFE to ensure uniformity of reproduction by different consumer and professional processors.

If LFE redirection is selected, audio content in the LFE channel above the “LFE channel low pass corner frequency” is redirected to another loudspeaker. This allows all audio content in the LFE content to be heard. The LFE audio signal is ﬁltered at the frequency set in the “LFE channel low pass corner frequency” and so it is recommended that this control set to 85 Hz or less. In the subwoofer, content above this frequency is summed to the other AES/EBU channel of Output 4. It is recommended that this subwoofer AES/EBU output. This results in the subwoofer reproducing audio content below the “LFE channel low pass corner frequency” and center loudspeaker reproducing the audio content above the “LFE channel low pass corner frequency”.

The correct value for this control depends on the audio source. Select “+10 dB” if the

LFE channel redirection deﬁnes how audio content in the LFE channel is

Test Signal Generators

This section provides test signals generated in the subwoofer for measurement and testing purposes. Some test signals are intended to be reproduced by the subwoofer(s) and some by loudspeakers. The

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generated signal can be connected to one of the inputs in the subwoofer instead of having to use an actual audio input signal. Therefore only those inputs that have been speciﬁed to be active in a subwoofer can be selected.

To use the test signals:

• Select the signal in the “Signal Type” drop-down box.

• Direct the signal to the required subwoofer input channel.

Preview

Storing Acoustic Settings in Subwoofer Memory

The acoustic settings stored in the System Setup File can be uploaded into the subwoofer’s memory. This allows the subwoofer to be used in Stand-Alone mode with the same Acoustical Settings as the GLM. SE™. The settings stored in the subwoofer’s memory can also be downloaded into the GLM.SE™. For more details about this, see the section on Stand-Alone Operation.

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Saving the settings into a System Setup File

When the adjustments have been completed, press “Ok” and the GLM.SE™ asks if the new settings should be saved in the currently open System Setup File. If “Yes” is pressed, the newly edited settings are saved, “No” discards the changes and “Cancel” returns back to the Acoustical Setup window so more changes can be made.

Using the Interactive Response Editor

This tool is available once AutoCal™ has been run. AutoCal™ measures the acoustical frequency responses of all the loudspeakers and subwoofers on the GLM.SE™ Control Network. The Interactive Response Editor allows the user to:

• See the frequency response measured using AutoCal™.

• Immediately see the effect of adjusting the Acoustical Settings on the in-room frequency response

To enter the Interactive Response Editor:

• AutoCal™ must have previously run and been saved in the Setup to the in-room frequency response of the loudspeakers and subwoofers on the GLM.SE™ Control Network (this enables the Interactive Response Editor).

• Enter the GLM.SE™ System Setup by pressing the “GLM.SE™ System Setup” button in the main window. Then select a loudspeaker to be adjusted and click the “Edit Acoustical Settings” button.

• Below the frequency response graph is a button labeled “Interactive Response Editor”. Pressing this opens a new window that displays the acoustical response measured by AutoCal™. It also shows how the current Acoustical Settings modify the measured response.

acquire a measurement of

Moving the focus back to the Acoustical Settings Editor window allows the Acoustical Settings to be changed. The effect of any changes can be seen in the responses displayed in the Interactive Response Editor window. This tool makes it very easy to implement precise and controlled adjustment to a loudspeaker’s or subwoofer’s acoustical response. Remaining problems in the response can be identiﬁed and evaluated.

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The default display setting is a third-octave smoothing allowing easy comparison with other measurement system results. Alternatively, a high-resolution frequency-dependent smoothing window called Genelec AccuSmooth displays a high-resolution response at low frequencies whilst removing excessive detail at mid and high frequencies.

The default vertical axis display setting is a 10 dB/division resolution. The 5 dB/division setting is for zooming into the detail of the acoustic response when editing the equalizer settings.

It is also possible to toggle between the “SinglePoint Response” and the “MultiPoint Response”. This permits comparison between the effect of the Acoustical Settings at the primary listening position and the effect of the same settings over the MultiPoint measurement area.

STAND-ALONE OPERATION

Most consoles have analog monitor sections, whereas some have digital monitor sections. Analog monitor sections are controlled using a volume potentiometer. Most advanced digital audio workstations have digital audio outputs that can be controlled using a fader on the screen or using a separate hardware device. Some systems even allow digital audio levels to be controlled via MIDI devices.

8130A Connectors and Controls

There is a row of eight switches on the back panel of the loudspeaker and a rotary level control on the front panel allowing the set up of the 8130A for stand-alone operation. See overleaf for the back panel layout of the 8130A.

The ﬁrst four switches from the left contain the room response corrections.

For a detailed description and instructions on the use of these switches, consult the 8130A Loudspeaker Operating Manual that comes with each loudspeaker.

The second four switches contain the system setting switches.

AES/EBU CHANNEL.

by the loudspeaker. Turning both switches on reproduces the sum of the two channels on the AES/ EBU cable. Turning both switches off has the same effect which has been done deliberately to avoid the situation where no input channel is selected and the loudspeaker is effectively muted. When two channels are selected, the two channels are summed together.

This selects the audio channel(s) available on the AES/EBU cable to be reproduced

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SYSTEM LEVEL. These switches allow scaling down of the loudspeaker output. The signal sent to the “Thru” output connector is not affected. The switches are additive, for example, “–30 dB” attenuation is achieved by turning on the “–10 dB” and “–20 dB” switches. The effect of these switches is combined with the effect of the rotary level adjustment control. When using the GLM.SE™ software volume control, set all switches to “OFF” and turn the level adjustment knob fully clockwise.

For a detailed description and instructions on the use of these switches, consult the 8130A Digital Loudspeaker Operating Manual.

Even if the digital source can control the digital level, it may still be advantageous to lower the sensitivity either with the GLM.SE™ or the “SYSTEM LEVEL” controls of the SE7261A subwoofer. This will enable the use of the upper end of the digital level controller.

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SE7261A Connectors and Controls

The SE7261A subwoofer supports digital audio only.

Illustrated below is the connector panel of the SE7261A subwoofer. In the bottom left corner are the AES/EBU digital audio inputs and outputs. The subwoofer has four AES/EBU inputs and four AES/EBU outputs.

The SE7261A can perform bass management. The DSP bass management system splits the signal from each input into low and high frequency components. Signal content below the crossover frequency is reproduced by the subwoofer and signal content above the crossover frequency is reproduced by the loudspeakers connected to the outputs of the subwoofer. Frequencies above the cross-over frequency from input 1 are directed to output 1, frequencies above the cross-over frequency from input 2 are directed to output 2 and so on. In a practical example, a cable carrying Left and Right signals is connected ﬁrst to INPUT number 1 on the subwoofer and then the OUTPUT number 1 is connected to Left and Right loudspeakers. For bass management to work, the subwoofer must be ﬁrst in the audio chain but after that the loudspeakers can be connected in any order.

All digital audio inputs and outputs are referenced to 0 dBFS (digital Full Scale, the largest possible signal that can be represented by an AES/EBU signal). Genelec GLM.SE™ system loudspeakers produce a sound pressure level of 100 dB SPL (at one meter distance in free space) for a digital input signal of –15 dBFS.

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Connector Panel Details

Controls selection. The SE7261A subwoofer works in stand-alone mode when the GLM.SE™

control network is not connected. The “CONTROLS SELECTION” switch allows selection between two basic methods to control a subwoofer in stand-alone mode.

“MANUAL CTRLS” refers to controlling the subwoofer using the controls on the subwoofer’s

connector panel.

“STORED CTRLS” refers to using the settings stored inside the memory of the subwoofer. These settings can be set using the GLM.SE™ and the GLM.SE™ control network. The stored settings provide additional functionality compared to the basic controls on the panel.

GLM.SE™ Control Network. To the right of the digital audio inputs are two RJ45 connectors for the GLM. SE™ Control Network. Acoustic settings can be edited and stored into the subwoofer using the GLM.SE™ and the GLM.SE™ Control Network connection. For more information about the use of the GLM.SE™ Control Network, see the section Acoustic Setup Wizard which explains the editing of Acoustical Settings using the GLM.SE™ and the section Genelec AutoCal™ which explains using AutoCal™ with subwoofer(s).

When the GLM.SE™ Control Network is connected, or when the “CONTROLS SELECTION” switch is in the “STORED CTRLS” position, some of the controls on the subwoofer’s connector panel may be disabled. They are disabled because the subwoofer is being controlled through the GLM.SE™ Control Network, or by the settings stored inside the memory of the subwoofer. If a disabled control on the panel is adjusted, all the lights on the connector panel ﬂash rapidly to inform that it is disabled and that the change has no effec

Stand Alone Controls (Manual)

In Stand-Alone Mode (when the GLM.SE™ Control Network is not connected) the controls on the subwoofer’s panel are used to setup the subwoofer. In the following sections the controls available on the connector panel are explained.

LFE Controls. Some multi-channel formats have a Low Frequency Effects (LFE) channel. This signal

must be connected to the LFE input (INPUT 4) to enable the DSP subwoofer to correctly reproduce all the bass information in the mix. The “LFE INPUT 4 CONTROLS” section controls the way the LFE signal presented to INPUT 4 is handled.

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If no LFE signal is connected, then the “LFE IN USE” switch should be set to the “NO” position so that INPUT 4 can work in the same way as the other inputs.

If an LFE signal is connected, then the “LFE IN USE” switch should be set to the “YES” position. The switches to the right of the “LFE IN USE” switch determine how the LFE signal is handled in the subwoofer. These switches are only effective when the “LFE IN USE” switch is in the “YES” position, otherwise they are ignored.

LFE sub-frame.

A and B. The “AES/EBU CHANNEL” switch selects if the LFE signal is carried in sub-frame A or B.

LFE bandwidth. The LFE input can be set to two frequency ranges: 19 to 85 Hz or 19 to 120 Hz using the “LFE BANDWIDTH” switch. Signal content in the LFE signal above the frequency value selected on the “LFE BANDWIDTH” switch is either not reproduced or is redirected (see below)

Redirect.

If the LFE signal includes content higher than 120 Hz, it can be monitored using the “Redirect” function. This function allows rerouting of LFE signal above 85 Hz to the front center loudspeaker. This rerouted LFE content is known as the redirected LFE signal.

Setting the “REDIRECT” switch to the “ON” position activates the redirect function and it can only be activated if the “LFE BANDWIDTH” switch is set to “85”.

The redirected LFE signal is added to the audio signal contained in the other sub-frame of the AES/EBU audio cable connected to INPUT 4. Typically the LFE channel is paired with the Front Center channel, so one of the sub-frames of OUTPUT 4 carries the sum of the redirected LFE signal and the center channel signal. OUTPUT 4 should then be connected to the Front Center loudspeaker.

An AES/EBU signal normally carries two audio channels in what are called sub-frames

Using redirection allows the LFE channel to be monitored as a full-bandwidth audio channel.

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Subwoofer input 4 Subwoofer output 4

Sub-frame A Sub-frame B Sub-frame A Sub-frame B

Center signal LFE signal Center + redirected LFE

signal

LFE signal Center signal Center + redirected LFE

signal

LFE +10 dB. In Dolby Digital and DTS encoding formats the LFE channel is monitored with +10 dB gain relative to the main channels. The object is to increase the headroom in the recorded signals. Surround sound decoders automatically add +10 dB of LFE gain to restore the level balance.

The “LFE +10 dB” function of the DSP subwoofers is designed to add the +10 dB of gain to the LFE channel in the production stage if it is not already done by the source connected to the monitoring system, Switching the “LFE +10 dB” switch to the “ON” position or using the optional remote control activates the function. A yellow light next to the “LFE +10 dB” switch illuminates when the “LFE +10 dB” function is activated and +10 dB of gain is added to the LFE signal. If the audio source outputs the LFE signal at the same level as the other (non-LFE) signals and the LFE should be reproduced at a 10 dB higher level, set this control to “ON”. If the LFE output is at a 10 dB higher level than other (non-LFE) channels, this switch should be set to “OFF”.

The “LFE +10 dB” function should not be used in the following cases:

• If the +10 dB LFE gain is already implemented by another device, for example, DVD player, surround sound processor or the output matrix of the mixing console

• When producing an audio format that does not require the use of +10 dB gain on the LFE channel, such as DVD-Audio (MLP) and SACD (DSD).

Bypass. The “BYPASS” section allows the use of a standard Genelec remote bypass switch. This allows for remote control of the subwoofer’s bass management bypass function. The red “BYPASS” light is illuminated when the bypass mode is active.

With the bypass mode on, the high pass ﬁlters for the loudspeakers are disabled and the system behaves as if the subwoofer was not connected. The bypass function has no effect on the LFE signal. If there is no LFE signal, the subwoofer will not reproduce any signal when the bypass is active.

Stand-alone acoustical controls.

subwoofer have been collected into a group at the top center section of the subwoofer’s connector panel.

The stand-alone controls for acoustical and level alignment of the

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Acoustical controls. The acoustical response of the SE7261A subwoofer should be matched to the characteristics of the room in which it is placed. The group of switches titled “CONTROLS” allows the control of Roll-Off (the response for very low frequencies, around 20 Hz) and the crossover Phase. The ”ROLL-OFF” and ”PHASE” switches are additive, meaning that the sum of all the switches in the “ON” position gives the current setting. For example, to set the roll-off to –6 dB, turn on two switches, –2 dB and –4 dB, making a sum of –6 dB.

Incorrect phase alignment between the loudspeakers and the subwoofer causes a drop in the frequency response around the crossover frequency. The SE7261A subwoofer contains a tone generator for phase alignment. The “TEST TONE” switch activates the tone generator at the crossover frequency. The test tone signal is sent to OUTPUT 1 on AES/EBU sub-frame A.

Acoustic measuring equipment such as Genelec AutoCal™ accurately aligns the phase. Alternatively, the following quick phase alignment process can be done:

• Disconnect all loudspeakers from the subwoofer outputs.

• Select the loudspeaker to be used as the reference for the phase alignment. Typically, this is the Front Center loudspeaker in a 5.1 multi-channel system.

• Connect this loudspeaker to subwoofer output 1.

• Select sub-frame A for reproduction on the reference loudspeaker.

• The test tone is played simultaneously from the subwoofer and loudspeaker.

• Listen to the tone and adjust both “PHASE” control switches to ﬁnd the setting that gives the minimum tone level at the listening position.

• After having found this minimum level setting, set the “-180 DEG” switch to the opposite setting to complete the setup. This puts the subwoofer in phase with the reference loudspeaker and completes the phase calibration.

• Finally, reconnect all loudspeakers to the subwoofer outputs.

The Phase and Bass Roll-Off adjustments should be performed individually for each subwoofer in the system.

Subwoofer level. The level of the subwoofer relative to the loudspeakers can be adjusted with the “SUBWOOFER LEVEL” rotary control. This control allows matching the subwoofer level to the levels of other loudspeakers in the system.

System level.

loudspeaker system. This control changes the subwoofer level as well as the levels of all loudspeakers connected to the subwoofer outputs.

The “SYSTEM LEVEL” switch group allows scaling the maximum sound level of the whole

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Genelec DSP loudspeakers produce a sound level of 100 dB SPL at a distance of one meter in free space for a digital input signal of –15 dBFS (FS stands for “Full Scale” the largest possible AES/EBU signal level). The “SYSTEM LEVEL” switches can be used to reduce this sound level.

It may be necessary to use the “SYSTEM LEVEL” attenuation switches to ensure that high-level digital audio signals do not overload the loudspeaker system. The suitable setting also depends on the listening distance. The correct setting for this control depends on the program source and the maximum sound level needed.

“REMOTE“ connector and clip indicator.

green to yellow to indicate clipping, and then to red to indicate that the protection circuit has been activated. If this occurs frequently, use the “SYSTEM LEVEL” controls of the DSP subwoofer(s) to reduce the replay level until the light remains green.

If the clip indicator light on the connector panel is not easily visible, the optional Remote LED Kit can be used to bring the clip indicator light into view. The kit can be connected to the connector labeled “REMOTE”. This connector also allows for several standard Genelec Remote Controls to be connected to the subwoofer. The Genelec remote controls can activate the bypass and the “LFE +10 dB” mode.

For further information about the subwoofer stand-alone operation, consult the SE7261A Subwoofer Operating Manual.

The clip indicator light on the connector panel will turn from

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FUNCTION REFERENCE

This section describes individual functions in detail. Functions are presented in alphabetical order.

Genelec AutoCal™

Genelec AutoCal™ performs automatic calibration of a multi loudspeaker system setup. It aligns every loudspeaker in the setup for ﬂat frequency response, equal virtual distance and the same sound pressure level.

In order to use Genelec AutoCal™

• A Genelec 8200A Calibration Microphone must be set up at the main listening position.

• The microphone must be connected to the GLM Network Interface device

• The GLM Network Interface device must 8200A measurement microphone, computer USB port, and sound card line input port in the computer

Genelec AutoCal™ is accessible in the System Setup Wizard and in the Setup Tab in the GLM.SE™ main window. (Menu path: Setup | GLM.SE™ Acoustic Wizard | AutoCal™).

Launch Genelec AutoCal™ by clicking the “Yes” button. After that, Genelec AutoCal™ works automatically and without user intervention. One loudspeaker at a time will produce a sweep tone, starting with the SE7261A. The sweep responses are recorded by Genelec AutoCal™. After that, Genelec AutoCal™ takes some time to calculate the appropriate settings for each loudspeaker in the system, and stores the resulting settings in the System Setup ﬁle. The progress indicated in the Genelec AutoCal™ window. The total amount of time Genelec AutoCal™ takes to calibrate the system depends on the number of loudspeakers in the system.

be connected to the loudspeaker control network cable,

For a presentation about the use of Genelec AutoCal™ see section “Genelec AutoCal™ - Automatic System Calibration” in the System Operating Manual.

SE7261A Online

This window appears when ﬁrst starting GLM.SE™. It veriﬁes the status of the SE7261A currently on the Genelec Control Network. If the SE7261A is not recognized check that the power switch is ON and the subwoofer is connected to the network. If the total length of the control network is more than 300 meters (900 feet), contact the Genelec distributor for more information.

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Load Setup

This window appears after the Loudspeakers Online window. It displays a maximum of ﬁve recently used System Setup ﬁles. Select a System Setup ﬁle from this list.

• Use the browser to button.

• After having selected a System Setup ﬁle, view its content by clicking the “Display Content” button.

• Load the System Setup ﬁle by clicking the “Load” button.

• To make a new System Setup, click the “Run Wizard” button.

search for any System Setup ﬁles on the computer. Click the “Browse…”

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Use the “Load System Setup” window to

• Select a System Setup ﬁle from the recently used ﬁles list

• Browse System Setup ﬁles

• Display the content of a selected System Setup ﬁle

• Load a selected System Setup ﬁle

• Run a System Setup Wizard to create a new System Setup ﬁle

Wizard Introduction

There are several Wizards to help with loudspeaker system setup and acoustical alignment.

When launching the GLM.SE™ for the ﬁrst time, the System Setup Wizard will run automatically. Later, changes to the System Setup ﬁle can be made using the System Setup Wizard again. The System Setup Wizard can be started in the GLM.SE™ Main Page using menu item “File | New”.

The Setup Wizard allows selection between Rapid Cabling Wizard and Manual Cabling Wizard. The Rapid Cabling Wizard is fast and effortless, but supports only the most typical loudspeaker arrangements. Most System Setup tasks will be completed automatically. See the Rapid Cabling chapter for details.

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Genelec SE User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual